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fix_apply.py 0000644 00000004452 15025176000 0007112 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for apply(). This converts apply(func, v, k) into (func)(*v, **k).""" # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Call, Comma, parenthesize class FixApply(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< 'apply' trailer< '(' arglist< (not argument<NAME '=' any>) func=any ',' (not argument<NAME '=' any>) args=any [',' (not argument<NAME '=' any>) kwds=any] [','] > ')' > > """ def transform(self, node, results): syms = self.syms assert results func = results["func"] args = results["args"] kwds = results.get("kwds") # I feel like we should be able to express this logic in the # PATTERN above but I don't know how to do it so... if args: if (args.type == self.syms.argument and args.children[0].value in {'**', '*'}): return # Make no change. if kwds and (kwds.type == self.syms.argument and kwds.children[0].value == '**'): return # Make no change. prefix = node.prefix func = func.clone() if (func.type not in (token.NAME, syms.atom) and (func.type != syms.power or func.children[-2].type == token.DOUBLESTAR)): # Need to parenthesize func = parenthesize(func) func.prefix = "" args = args.clone() args.prefix = "" if kwds is not None: kwds = kwds.clone() kwds.prefix = "" l_newargs = [pytree.Leaf(token.STAR, "*"), args] if kwds is not None: l_newargs.extend([Comma(), pytree.Leaf(token.DOUBLESTAR, "**"), kwds]) l_newargs[-2].prefix = " " # that's the ** token # XXX Sometimes we could be cleverer, e.g. apply(f, (x, y) + t) # can be translated into f(x, y, *t) instead of f(*(x, y) + t) #new = pytree.Node(syms.power, (func, ArgList(l_newargs))) return Call(func, l_newargs, prefix=prefix) __pycache__/fix_paren.cpython-39.opt-2.pyc 0000644 00000002343 15025176000 0014316 0 ustar 00 a �DOg� � @ s2 d dl mZ d dlmZmZ G dd� dej�ZdS )� )� fixer_base)�LParen�RParenc @ s e Zd ZdZdZdd� ZdS )�FixParenTa atom< ('[' | '(') (listmaker< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > > | testlist_gexp< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > >) (']' | ')') > c C s8 |d }t � }|j|_d|_|�d|� |�t� � d S )N�target� � )r �prefixZ insert_childZ append_childr )�selfZnode�resultsr Zlparen� r �//usr/lib64/python3.9/lib2to3/fixes/fix_paren.py� transform% s zFixParen.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr r r r r r s r N)r r Z fixer_utilr r ZBaseFixr r r r r �<module> s __pycache__/fix_basestring.cpython-39.opt-2.pyc 0000644 00000001145 15025176000 0015351 0 ustar 00 a �DOg@ � @ s. d dl mZ d dlmZ G dd� dej�ZdS )� )� fixer_base)�Namec @ s e Zd ZdZdZdd� ZdS )� FixBasestringTz 'basestring'c C s t d|jd�S )N�str)�prefix)r r )�selfZnode�results� r �4/usr/lib64/python3.9/lib2to3/fixes/fix_basestring.py� transform s zFixBasestring.transformN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr r r r r r s r N)� r Z fixer_utilr ZBaseFixr r r r r �<module> s __pycache__/fix_apply.cpython-39.pyc 0000644 00000003173 15025176000 0013400 0 ustar 00 a �DOg* � @ sR d Z ddlmZ ddlmZ ddlmZ ddlmZmZm Z G dd� dej �Z dS ) zIFixer for apply(). 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We avoid the transformation if the filter() call is directly contained in iter(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:. NOTE: This is still not correct if the original code was depending on filter(F, X) to return a string if X is a string and a tuple if X is a tuple. That would require type inference, which we don't do. 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Special contexts that apply to both: list(), sorted(), tuple() set(), any(), all(), sum(). Note: iter(d.keys()) could be written as iter(d) but since the original d.iterkeys() was also redundant we don't fix this. 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�selfZnode�resultsZ bare_print�argsr r r Zl_argsZn_stmtr r r � transform% s: � zFixPrint.transformc C sN d|_ t�| jjt|�t�tjd�|f�}|r@|� t � � d|_ |� |� d S )Nr �=r ) r r ZNodeZsyms�argumentr r" r �EQUAL�appendr )r& Zl_nodesZs_kwdZn_exprZ n_argumentr r r r$ M s �� zFixPrint.add_kwargN)�__name__� __module__� __qualname__Z BM_compatibleZPATTERNr) r$ r r r r r s (r N)r r r Zpgen2r r Z fixer_utilr r r r �compile_patternr ZBaseFixr r r r r �<module> s � __pycache__/fix_paren.cpython-39.opt-1.pyc 0000644 00000002550 15025176000 0014315 0 ustar 00 a �DOg� � @ s6 d Z ddlmZ ddlmZmZ G dd� dej�ZdS )ztFixer that adds parentheses where they are required This converts ``[x for x in 1, 2]`` to ``[x for x in (1, 2)]``.� )� fixer_base)�LParen�RParenc @ s e Zd ZdZdZdd� ZdS )�FixParenTa atom< ('[' | '(') (listmaker< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > > | testlist_gexp< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > >) (']' | 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All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that changes buffer(...) into memoryview(...).""" # Local imports from .. import fixer_base from ..fixer_util import Name class FixBuffer(fixer_base.BaseFix): BM_compatible = True explicit = True # The user must ask for this fixer PATTERN = """ power< name='buffer' trailer< '(' [any] ')' > any* > """ def transform(self, node, results): name = results["name"] name.replace(Name("memoryview", prefix=name.prefix)) fix_imports2.py 0000644 00000000441 15025176000 0007536 0 ustar 00 """Fix incompatible imports and module references that must be fixed after fix_imports.""" from . import fix_imports MAPPING = { 'whichdb': 'dbm', 'anydbm': 'dbm', } class FixImports2(fix_imports.FixImports): run_order = 7 mapping = MAPPING fix_throw.py 0000644 00000003056 15025176000 0007127 0 ustar 00 """Fixer for generator.throw(E, V, T). g.throw(E) -> g.throw(E) g.throw(E, V) -> g.throw(E(V)) g.throw(E, V, T) -> g.throw(E(V).with_traceback(T)) g.throw("foo"[, V[, T]]) will warn about string exceptions.""" # Author: Collin Winter # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Name, Call, ArgList, Attr, is_tuple class FixThrow(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< any trailer< '.' 'throw' > trailer< '(' args=arglist< exc=any ',' val=any [',' tb=any] > ')' > > | power< any trailer< '.' 'throw' > trailer< '(' exc=any ')' > > """ def transform(self, node, results): syms = self.syms exc = results["exc"].clone() if exc.type is token.STRING: self.cannot_convert(node, "Python 3 does not support string exceptions") return # Leave "g.throw(E)" alone val = results.get("val") if val is None: return val = val.clone() if is_tuple(val): args = [c.clone() for c in val.children[1:-1]] else: val.prefix = "" args = [val] throw_args = results["args"] if "tb" in results: tb = results["tb"].clone() tb.prefix = "" e = Call(exc, args) with_tb = Attr(e, Name('with_traceback')) + [ArgList([tb])] throw_args.replace(pytree.Node(syms.power, with_tb)) else: throw_args.replace(Call(exc, args)) fix_has_key.py 0000644 00000006174 15025176000 0007413 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for has_key(). Calls to .has_key() methods are expressed in terms of the 'in' operator: d.has_key(k) -> k in d CAVEATS: 1) While the primary target of this fixer is dict.has_key(), the fixer will change any has_key() method call, regardless of its class. 2) Cases like this will not be converted: m = d.has_key if m(k): ... Only *calls* to has_key() are converted. While it is possible to convert the above to something like m = d.__contains__ if m(k): ... this is currently not done. """ # Local imports from .. import pytree from .. import fixer_base from ..fixer_util import Name, parenthesize class FixHasKey(fixer_base.BaseFix): BM_compatible = True PATTERN = """ anchor=power< before=any+ trailer< '.' 'has_key' > trailer< '(' ( not(arglist | argument<any '=' any>) arg=any | arglist<(not argument<any '=' any>) arg=any ','> ) ')' > after=any* > | negation=not_test< 'not' anchor=power< before=any+ trailer< '.' 'has_key' > trailer< '(' ( not(arglist | argument<any '=' any>) arg=any | arglist<(not argument<any '=' any>) arg=any ','> ) ')' > > > """ def transform(self, node, results): assert results syms = self.syms if (node.parent.type == syms.not_test and self.pattern.match(node.parent)): # Don't transform a node matching the first alternative of the # pattern when its parent matches the second alternative return None negation = results.get("negation") anchor = results["anchor"] prefix = node.prefix before = [n.clone() for n in results["before"]] arg = results["arg"].clone() after = results.get("after") if after: after = [n.clone() for n in after] if arg.type in (syms.comparison, syms.not_test, syms.and_test, syms.or_test, syms.test, syms.lambdef, syms.argument): arg = parenthesize(arg) if len(before) == 1: before = before[0] else: before = pytree.Node(syms.power, before) before.prefix = " " n_op = Name("in", prefix=" ") if negation: n_not = Name("not", prefix=" ") n_op = pytree.Node(syms.comp_op, (n_not, n_op)) new = pytree.Node(syms.comparison, (arg, n_op, before)) if after: new = parenthesize(new) new = pytree.Node(syms.power, (new,) + tuple(after)) if node.parent.type in (syms.comparison, syms.expr, syms.xor_expr, syms.and_expr, syms.shift_expr, syms.arith_expr, syms.term, syms.factor, syms.power): new = parenthesize(new) new.prefix = prefix return new fix_intern.py 0000644 00000002170 15025176000 0007257 0 ustar 00 # Copyright 2006 Georg Brandl. # Licensed to PSF under a Contributor Agreement. """Fixer for intern(). intern(s) -> sys.intern(s)""" # Local imports from .. import fixer_base from ..fixer_util import ImportAndCall, touch_import class FixIntern(fixer_base.BaseFix): BM_compatible = True order = "pre" PATTERN = """ power< 'intern' trailer< lpar='(' ( not(arglist | argument<any '=' any>) obj=any | obj=arglist<(not argument<any '=' any>) any ','> ) rpar=')' > after=any* > """ def transform(self, node, results): if results: # I feel like we should be able to express this logic in the # PATTERN above but I don't know how to do it so... obj = results['obj'] if obj: if (obj.type == self.syms.argument and obj.children[0].value in {'**', '*'}): return # Make no change. names = ('sys', 'intern') new = ImportAndCall(node, results, names) touch_import(None, 'sys', node) return new fix_xreadlines.py 0000644 00000001261 15025176000 0010116 0 ustar 00 """Fix "for x in f.xreadlines()" -> "for x in f". This fixer will also convert g(f.xreadlines) into g(f.__iter__).""" # Author: Collin Winter # Local imports from .. import fixer_base from ..fixer_util import Name class FixXreadlines(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< call=any+ trailer< '.' 'xreadlines' > trailer< '(' ')' > > | power< any+ trailer< '.' no_call='xreadlines' > > """ def transform(self, node, results): no_call = results.get("no_call") if no_call: no_call.replace(Name("__iter__", prefix=no_call.prefix)) else: node.replace([x.clone() for x in results["call"]]) fix_itertools.py 0000644 00000003014 15025176000 0010002 0 ustar 00 """ Fixer for itertools.(imap|ifilter|izip) --> (map|filter|zip) and itertools.ifilterfalse --> itertools.filterfalse (bugs 2360-2363) imports from itertools are fixed in fix_itertools_import.py If itertools is imported as something else (ie: import itertools as it; it.izip(spam, eggs)) method calls will not get fixed. """ # Local imports from .. import fixer_base from ..fixer_util import Name class FixItertools(fixer_base.BaseFix): BM_compatible = True it_funcs = "('imap'|'ifilter'|'izip'|'izip_longest'|'ifilterfalse')" PATTERN = """ power< it='itertools' trailer< dot='.' func=%(it_funcs)s > trailer< '(' [any] ')' > > | power< func=%(it_funcs)s trailer< '(' [any] ')' > > """ %(locals()) # Needs to be run after fix_(map|zip|filter) run_order = 6 def transform(self, node, results): prefix = None func = results['func'][0] if ('it' in results and func.value not in ('ifilterfalse', 'izip_longest')): dot, it = (results['dot'], results['it']) # Remove the 'itertools' prefix = it.prefix it.remove() # Replace the node which contains ('.', 'function') with the # function (to be consistent with the second part of the pattern) dot.remove() func.parent.replace(func) prefix = prefix or func.prefix func.replace(Name(func.value[1:], prefix=prefix)) fix_except.py 0000644 00000006420 15025176000 0007252 0 ustar 00 """Fixer for except statements with named exceptions. The following cases will be converted: - "except E, T:" where T is a name: except E as T: - "except E, T:" where T is not a name, tuple or list: except E as t: T = t This is done because the target of an "except" clause must be a name. - "except E, T:" where T is a tuple or list literal: except E as t: T = t.args """ # Author: Collin Winter # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Assign, Attr, Name, is_tuple, is_list, syms def find_excepts(nodes): for i, n in enumerate(nodes): if n.type == syms.except_clause: if n.children[0].value == 'except': yield (n, nodes[i+2]) class FixExcept(fixer_base.BaseFix): BM_compatible = True PATTERN = """ try_stmt< 'try' ':' (simple_stmt | suite) cleanup=(except_clause ':' (simple_stmt | suite))+ tail=(['except' ':' (simple_stmt | suite)] ['else' ':' (simple_stmt | suite)] ['finally' ':' (simple_stmt | suite)]) > """ def transform(self, node, results): syms = self.syms tail = [n.clone() for n in results["tail"]] try_cleanup = [ch.clone() for ch in results["cleanup"]] for except_clause, e_suite in find_excepts(try_cleanup): if len(except_clause.children) == 4: (E, comma, N) = except_clause.children[1:4] comma.replace(Name("as", prefix=" ")) if N.type != token.NAME: # Generate a new N for the except clause new_N = Name(self.new_name(), prefix=" ") target = N.clone() target.prefix = "" N.replace(new_N) new_N = new_N.clone() # Insert "old_N = new_N" as the first statement in # the except body. This loop skips leading whitespace # and indents #TODO(cwinter) suite-cleanup suite_stmts = e_suite.children for i, stmt in enumerate(suite_stmts): if isinstance(stmt, pytree.Node): break # The assignment is different if old_N is a tuple or list # In that case, the assignment is old_N = new_N.args if is_tuple(N) or is_list(N): assign = Assign(target, Attr(new_N, Name('args'))) else: assign = Assign(target, new_N) #TODO(cwinter) stopgap until children becomes a smart list for child in reversed(suite_stmts[:i]): e_suite.insert_child(0, child) e_suite.insert_child(i, assign) elif N.prefix == "": # No space after a comma is legal; no space after "as", # not so much. N.prefix = " " #TODO(cwinter) fix this when children becomes a smart list children = [c.clone() for c in node.children[:3]] + try_cleanup + tail return pytree.Node(node.type, children) fix_repr.py 0000644 00000001145 15025176000 0006731 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that transforms `xyzzy` into repr(xyzzy).""" # Local imports from .. import fixer_base from ..fixer_util import Call, Name, parenthesize class FixRepr(fixer_base.BaseFix): BM_compatible = True PATTERN = """ atom < '`' expr=any '`' > """ def transform(self, node, results): expr = results["expr"].clone() if expr.type == self.syms.testlist1: expr = parenthesize(expr) return Call(Name("repr"), [expr], prefix=node.prefix) fix_itertools_imports.py 0000644 00000004046 15025176000 0011565 0 ustar 00 """ Fixer for imports of itertools.(imap|ifilter|izip|ifilterfalse) """ # Local imports from lib2to3 import fixer_base from lib2to3.fixer_util import BlankLine, syms, token class FixItertoolsImports(fixer_base.BaseFix): BM_compatible = True PATTERN = """ import_from< 'from' 'itertools' 'import' imports=any > """ %(locals()) def transform(self, node, results): imports = results['imports'] if imports.type == syms.import_as_name or not imports.children: children = [imports] else: children = imports.children for child in children[::2]: if child.type == token.NAME: member = child.value name_node = child elif child.type == token.STAR: # Just leave the import as is. return else: assert child.type == syms.import_as_name name_node = child.children[0] member_name = name_node.value if member_name in ('imap', 'izip', 'ifilter'): child.value = None child.remove() elif member_name in ('ifilterfalse', 'izip_longest'): node.changed() name_node.value = ('filterfalse' if member_name[1] == 'f' else 'zip_longest') # Make sure the import statement is still sane children = imports.children[:] or [imports] remove_comma = True for child in children: if remove_comma and child.type == token.COMMA: child.remove() else: remove_comma ^= True while children and children[-1].type == token.COMMA: children.pop().remove() # If there are no imports left, just get rid of the entire statement if (not (imports.children or getattr(imports, 'value', None)) or imports.parent is None): p = node.prefix node = BlankLine() node.prefix = p return node fix_raise.py 0000644 00000005556 15025176000 0007076 0 ustar 00 """Fixer for 'raise E, V, T' raise -> raise raise E -> raise E raise E, V -> raise E(V) raise E, V, T -> raise E(V).with_traceback(T) raise E, None, T -> raise E.with_traceback(T) raise (((E, E'), E''), E'''), V -> raise E(V) raise "foo", V, T -> warns about string exceptions CAVEATS: 1) "raise E, V" will be incorrectly translated if V is an exception instance. The correct Python 3 idiom is raise E from V but since we can't detect instance-hood by syntax alone and since any client code would have to be changed as well, we don't automate this. """ # Author: Collin Winter # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Name, Call, Attr, ArgList, is_tuple class FixRaise(fixer_base.BaseFix): BM_compatible = True PATTERN = """ raise_stmt< 'raise' exc=any [',' val=any [',' tb=any]] > """ def transform(self, node, results): syms = self.syms exc = results["exc"].clone() if exc.type == token.STRING: msg = "Python 3 does not support string exceptions" self.cannot_convert(node, msg) return # Python 2 supports # raise ((((E1, E2), E3), E4), E5), V # as a synonym for # raise E1, V # Since Python 3 will not support this, we recurse down any tuple # literals, always taking the first element. if is_tuple(exc): while is_tuple(exc): # exc.children[1:-1] is the unparenthesized tuple # exc.children[1].children[0] is the first element of the tuple exc = exc.children[1].children[0].clone() exc.prefix = " " if "val" not in results: # One-argument raise new = pytree.Node(syms.raise_stmt, [Name("raise"), exc]) new.prefix = node.prefix return new val = results["val"].clone() if is_tuple(val): args = [c.clone() for c in val.children[1:-1]] else: val.prefix = "" args = [val] if "tb" in results: tb = results["tb"].clone() tb.prefix = "" e = exc # If there's a traceback and None is passed as the value, then don't # add a call, since the user probably just wants to add a # traceback. See issue #9661. if val.type != token.NAME or val.value != "None": e = Call(exc, args) with_tb = Attr(e, Name('with_traceback')) + [ArgList([tb])] new = pytree.Node(syms.simple_stmt, [Name("raise")] + with_tb) new.prefix = node.prefix return new else: return pytree.Node(syms.raise_stmt, [Name("raise"), Call(exc, args)], prefix=node.prefix) fix_ne.py 0000644 00000001073 15025176000 0006363 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that turns <> into !=.""" # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base class FixNe(fixer_base.BaseFix): # This is so simple that we don't need the pattern compiler. _accept_type = token.NOTEQUAL def match(self, node): # Override return node.value == "<>" def transform(self, node, results): new = pytree.Leaf(token.NOTEQUAL, "!=", prefix=node.prefix) return new fix_unicode.py 0000644 00000002350 15025176000 0007406 0 ustar 00 r"""Fixer for unicode. * Changes unicode to str and unichr to chr. * If "...\u..." is not unicode literal change it into "...\\u...". * Change u"..." into "...". """ from ..pgen2 import token from .. import fixer_base _mapping = {"unichr" : "chr", "unicode" : "str"} class FixUnicode(fixer_base.BaseFix): BM_compatible = True PATTERN = "STRING | 'unicode' | 'unichr'" def start_tree(self, tree, filename): super(FixUnicode, self).start_tree(tree, filename) self.unicode_literals = 'unicode_literals' in tree.future_features def transform(self, node, results): if node.type == token.NAME: new = node.clone() new.value = _mapping[node.value] return new elif node.type == token.STRING: val = node.value if not self.unicode_literals and val[0] in '\'"' and '\\' in val: val = r'\\'.join([ v.replace('\\u', r'\\u').replace('\\U', r'\\U') for v in val.split(r'\\') ]) if val[0] in 'uU': val = val[1:] if val == node.value: return node new = node.clone() new.value = val return new fix_operator.py 0000644 00000006542 15025176000 0007622 0 ustar 00 """Fixer for operator functions. operator.isCallable(obj) -> callable(obj) operator.sequenceIncludes(obj) -> operator.contains(obj) operator.isSequenceType(obj) -> isinstance(obj, collections.abc.Sequence) operator.isMappingType(obj) -> isinstance(obj, collections.abc.Mapping) operator.isNumberType(obj) -> isinstance(obj, numbers.Number) operator.repeat(obj, n) -> operator.mul(obj, n) operator.irepeat(obj, n) -> operator.imul(obj, n) """ import collections.abc # Local imports from lib2to3 import fixer_base from lib2to3.fixer_util import Call, Name, String, touch_import def invocation(s): def dec(f): f.invocation = s return f return dec class FixOperator(fixer_base.BaseFix): BM_compatible = True order = "pre" methods = """ method=('isCallable'|'sequenceIncludes' |'isSequenceType'|'isMappingType'|'isNumberType' |'repeat'|'irepeat') """ obj = "'(' obj=any ')'" PATTERN = """ power< module='operator' trailer< '.' %(methods)s > trailer< %(obj)s > > | power< %(methods)s trailer< %(obj)s > > """ % dict(methods=methods, obj=obj) def transform(self, node, results): method = self._check_method(node, results) if method is not None: return method(node, results) @invocation("operator.contains(%s)") def _sequenceIncludes(self, node, results): return self._handle_rename(node, results, "contains") @invocation("callable(%s)") def _isCallable(self, node, results): obj = results["obj"] return Call(Name("callable"), [obj.clone()], prefix=node.prefix) @invocation("operator.mul(%s)") def _repeat(self, node, results): return self._handle_rename(node, results, "mul") @invocation("operator.imul(%s)") def _irepeat(self, node, results): return self._handle_rename(node, results, "imul") @invocation("isinstance(%s, collections.abc.Sequence)") def _isSequenceType(self, node, results): return self._handle_type2abc(node, results, "collections.abc", "Sequence") @invocation("isinstance(%s, collections.abc.Mapping)") def _isMappingType(self, node, results): return self._handle_type2abc(node, results, "collections.abc", "Mapping") @invocation("isinstance(%s, numbers.Number)") def _isNumberType(self, node, results): return self._handle_type2abc(node, results, "numbers", "Number") def _handle_rename(self, node, results, name): method = results["method"][0] method.value = name method.changed() def _handle_type2abc(self, node, results, module, abc): touch_import(None, module, node) obj = results["obj"] args = [obj.clone(), String(", " + ".".join([module, abc]))] return Call(Name("isinstance"), args, prefix=node.prefix) def _check_method(self, node, results): method = getattr(self, "_" + results["method"][0].value) if isinstance(method, collections.abc.Callable): if "module" in results: return method else: sub = (str(results["obj"]),) invocation_str = method.invocation % sub self.warning(node, "You should use '%s' here." % invocation_str) return None fix_dict.py 0000644 00000007260 15025176000 0006710 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for dict methods. d.keys() -> list(d.keys()) d.items() -> list(d.items()) d.values() -> list(d.values()) d.iterkeys() -> iter(d.keys()) d.iteritems() -> iter(d.items()) d.itervalues() -> iter(d.values()) d.viewkeys() -> d.keys() d.viewitems() -> d.items() d.viewvalues() -> d.values() Except in certain very specific contexts: the iter() can be dropped when the context is list(), sorted(), iter() or for...in; the list() can be dropped when the context is list() or sorted() (but not iter() or for...in!). Special contexts that apply to both: list(), sorted(), tuple() set(), any(), all(), sum(). Note: iter(d.keys()) could be written as iter(d) but since the original d.iterkeys() was also redundant we don't fix this. And there are (rare) contexts where it makes a difference (e.g. when passing it as an argument to a function that introspects the argument). """ # Local imports from .. import pytree from .. import patcomp from .. import fixer_base from ..fixer_util import Name, Call, Dot from .. import fixer_util iter_exempt = fixer_util.consuming_calls | {"iter"} class FixDict(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< head=any+ trailer< '.' method=('keys'|'items'|'values'| 'iterkeys'|'iteritems'|'itervalues'| 'viewkeys'|'viewitems'|'viewvalues') > parens=trailer< '(' ')' > tail=any* > """ def transform(self, node, results): head = results["head"] method = results["method"][0] # Extract node for method name tail = results["tail"] syms = self.syms method_name = method.value isiter = method_name.startswith("iter") isview = method_name.startswith("view") if isiter or isview: method_name = method_name[4:] assert method_name in ("keys", "items", "values"), repr(method) head = [n.clone() for n in head] tail = [n.clone() for n in tail] special = not tail and self.in_special_context(node, isiter) args = head + [pytree.Node(syms.trailer, [Dot(), Name(method_name, prefix=method.prefix)]), results["parens"].clone()] new = pytree.Node(syms.power, args) if not (special or isview): new.prefix = "" new = Call(Name("iter" if isiter else "list"), [new]) if tail: new = pytree.Node(syms.power, [new] + tail) new.prefix = node.prefix return new P1 = "power< func=NAME trailer< '(' node=any ')' > any* >" p1 = patcomp.compile_pattern(P1) P2 = """for_stmt< 'for' any 'in' node=any ':' any* > | comp_for< 'for' any 'in' node=any any* > """ p2 = patcomp.compile_pattern(P2) def in_special_context(self, node, isiter): if node.parent is None: return False results = {} if (node.parent.parent is not None and self.p1.match(node.parent.parent, results) and results["node"] is node): if isiter: # iter(d.iterkeys()) -> iter(d.keys()), etc. return results["func"].value in iter_exempt else: # list(d.keys()) -> list(d.keys()), etc. return results["func"].value in fixer_util.consuming_calls if not isiter: return False # for ... in d.iterkeys() -> for ... in d.keys(), etc. return self.p2.match(node.parent, results) and results["node"] is node fix_future.py 0000644 00000001043 15025176000 0007270 0 ustar 00 """Remove __future__ imports from __future__ import foo is replaced with an empty line. """ # Author: Christian Heimes # Local imports from .. import fixer_base from ..fixer_util import BlankLine class FixFuture(fixer_base.BaseFix): BM_compatible = True PATTERN = """import_from< 'from' module_name="__future__" 'import' any >""" # This should be run last -- some things check for the import run_order = 10 def transform(self, node, results): new = BlankLine() new.prefix = node.prefix return new fix_standarderror.py 0000644 00000000701 15025176000 0010630 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for StandardError -> Exception.""" # Local imports from .. import fixer_base from ..fixer_util import Name class FixStandarderror(fixer_base.BaseFix): BM_compatible = True PATTERN = """ 'StandardError' """ def transform(self, node, results): return Name("Exception", prefix=node.prefix) fix_numliterals.py 0000644 00000001400 15025176000 0010312 0 ustar 00 """Fixer that turns 1L into 1, 0755 into 0o755. """ # Copyright 2007 Georg Brandl. # Licensed to PSF under a Contributor Agreement. # Local imports from ..pgen2 import token from .. import fixer_base from ..fixer_util import Number class FixNumliterals(fixer_base.BaseFix): # This is so simple that we don't need the pattern compiler. _accept_type = token.NUMBER def match(self, node): # Override return (node.value.startswith("0") or node.value[-1] in "Ll") def transform(self, node, results): val = node.value if val[-1] in 'Ll': val = val[:-1] elif val.startswith('0') and val.isdigit() and len(set(val)) > 1: val = "0o" + val[1:] return Number(val, prefix=node.prefix) fix_getcwdu.py 0000644 00000000703 15025176000 0007422 0 ustar 00 """ Fixer that changes os.getcwdu() to os.getcwd(). """ # Author: Victor Stinner # Local imports from .. import fixer_base from ..fixer_util import Name class FixGetcwdu(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< 'os' trailer< dot='.' name='getcwdu' > any* > """ def transform(self, node, results): name = results["name"] name.replace(Name("getcwd", prefix=name.prefix)) fix_basestring.py 0000644 00000000500 15025176000 0010114 0 ustar 00 """Fixer for basestring -> str.""" # Author: Christian Heimes # Local imports from .. import fixer_base from ..fixer_util import Name class FixBasestring(fixer_base.BaseFix): BM_compatible = True PATTERN = "'basestring'" def transform(self, node, results): return Name("str", prefix=node.prefix) fix_xrange.py 0000644 00000005206 15025176000 0007247 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that changes xrange(...) into range(...).""" # Local imports from .. import fixer_base from ..fixer_util import Name, Call, consuming_calls from .. import patcomp class FixXrange(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< (name='range'|name='xrange') trailer< '(' args=any ')' > rest=any* > """ def start_tree(self, tree, filename): super(FixXrange, self).start_tree(tree, filename) self.transformed_xranges = set() def finish_tree(self, tree, filename): self.transformed_xranges = None def transform(self, node, results): name = results["name"] if name.value == "xrange": return self.transform_xrange(node, results) elif name.value == "range": return self.transform_range(node, results) else: raise ValueError(repr(name)) def transform_xrange(self, node, results): name = results["name"] name.replace(Name("range", prefix=name.prefix)) # This prevents the new range call from being wrapped in a list later. self.transformed_xranges.add(id(node)) def transform_range(self, node, results): if (id(node) not in self.transformed_xranges and not self.in_special_context(node)): range_call = Call(Name("range"), [results["args"].clone()]) # Encase the range call in list(). list_call = Call(Name("list"), [range_call], prefix=node.prefix) # Put things that were after the range() call after the list call. for n in results["rest"]: list_call.append_child(n) return list_call P1 = "power< func=NAME trailer< '(' node=any ')' > any* >" p1 = patcomp.compile_pattern(P1) P2 = """for_stmt< 'for' any 'in' node=any ':' any* > | comp_for< 'for' any 'in' node=any any* > | comparison< any 'in' node=any any*> """ p2 = patcomp.compile_pattern(P2) def in_special_context(self, node): if node.parent is None: return False results = {} if (node.parent.parent is not None and self.p1.match(node.parent.parent, results) and results["node"] is node): # list(d.keys()) -> list(d.keys()), etc. return results["func"].value in consuming_calls # for ... in d.iterkeys() -> for ... in d.keys(), etc. return self.p2.match(node.parent, results) and results["node"] is node fix_renames.py 0000644 00000004255 15025176000 0007420 0 ustar 00 """Fix incompatible renames Fixes: * sys.maxint -> sys.maxsize """ # Author: Christian Heimes # based on Collin Winter's fix_import # Local imports from .. import fixer_base from ..fixer_util import Name, attr_chain MAPPING = {"sys": {"maxint" : "maxsize"}, } LOOKUP = {} def alternates(members): return "(" + "|".join(map(repr, members)) + ")" def build_pattern(): #bare = set() for module, replace in list(MAPPING.items()): for old_attr, new_attr in list(replace.items()): LOOKUP[(module, old_attr)] = new_attr #bare.add(module) #bare.add(old_attr) #yield """ # import_name< 'import' (module=%r # | dotted_as_names< any* module=%r any* >) > # """ % (module, module) yield """ import_from< 'from' module_name=%r 'import' ( attr_name=%r | import_as_name< attr_name=%r 'as' any >) > """ % (module, old_attr, old_attr) yield """ power< module_name=%r trailer< '.' attr_name=%r > any* > """ % (module, old_attr) #yield """bare_name=%s""" % alternates(bare) class FixRenames(fixer_base.BaseFix): BM_compatible = True PATTERN = "|".join(build_pattern()) order = "pre" # Pre-order tree traversal # Don't match the node if it's within another match def match(self, node): match = super(FixRenames, self).match results = match(node) if results: if any(match(obj) for obj in attr_chain(node, "parent")): return False return results return False #def start_tree(self, tree, filename): # super(FixRenames, self).start_tree(tree, filename) # self.replace = {} def transform(self, node, results): mod_name = results.get("module_name") attr_name = results.get("attr_name") #bare_name = results.get("bare_name") #import_mod = results.get("module") if mod_name and attr_name: new_attr = LOOKUP[(mod_name.value, attr_name.value)] attr_name.replace(Name(new_attr, prefix=attr_name.prefix)) fix_filter.py 0000644 00000005315 15025176000 0007251 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that changes filter(F, X) into list(filter(F, X)). We avoid the transformation if the filter() call is directly contained in iter(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:. NOTE: This is still not correct if the original code was depending on filter(F, X) to return a string if X is a string and a tuple if X is a tuple. That would require type inference, which we don't do. Let Python 2.6 figure it out. """ # Local imports from .. import fixer_base from ..pytree import Node from ..pygram import python_symbols as syms from ..fixer_util import Name, ArgList, ListComp, in_special_context, parenthesize class FixFilter(fixer_base.ConditionalFix): BM_compatible = True PATTERN = """ filter_lambda=power< 'filter' trailer< '(' arglist< lambdef< 'lambda' (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any > ',' it=any > ')' > [extra_trailers=trailer*] > | power< 'filter' trailer< '(' arglist< none='None' ',' seq=any > ')' > [extra_trailers=trailer*] > | power< 'filter' args=trailer< '(' [any] ')' > [extra_trailers=trailer*] > """ skip_on = "future_builtins.filter" def transform(self, node, results): if self.should_skip(node): return trailers = [] if 'extra_trailers' in results: for t in results['extra_trailers']: trailers.append(t.clone()) if "filter_lambda" in results: xp = results.get("xp").clone() if xp.type == syms.test: xp.prefix = "" xp = parenthesize(xp) new = ListComp(results.get("fp").clone(), results.get("fp").clone(), results.get("it").clone(), xp) new = Node(syms.power, [new] + trailers, prefix="") elif "none" in results: new = ListComp(Name("_f"), Name("_f"), results["seq"].clone(), Name("_f")) new = Node(syms.power, [new] + trailers, prefix="") else: if in_special_context(node): return None args = results['args'].clone() new = Node(syms.power, [Name("filter"), args], prefix="") new = Node(syms.power, [Name("list"), ArgList([new])] + trailers) new.prefix = "" new.prefix = node.prefix return new fix_methodattrs.py 0000644 00000001136 15025176000 0010317 0 ustar 00 """Fix bound method attributes (method.im_? -> method.__?__). """ # Author: Christian Heimes # Local imports from .. import fixer_base from ..fixer_util import Name MAP = { "im_func" : "__func__", "im_self" : "__self__", "im_class" : "__self__.__class__" } class FixMethodattrs(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< any+ trailer< '.' attr=('im_func' | 'im_self' | 'im_class') > any* > """ def transform(self, node, results): attr = results["attr"][0] new = MAP[attr.value] attr.replace(Name(new, prefix=attr.prefix)) fix_types.py 0000644 00000003356 15025176000 0007133 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for removing uses of the types module. These work for only the known names in the types module. The forms above can include types. or not. ie, It is assumed the module is imported either as: import types from types import ... # either * or specific types The import statements are not modified. There should be another fixer that handles at least the following constants: type([]) -> list type(()) -> tuple type('') -> str """ # Local imports from .. import fixer_base from ..fixer_util import Name _TYPE_MAPPING = { 'BooleanType' : 'bool', 'BufferType' : 'memoryview', 'ClassType' : 'type', 'ComplexType' : 'complex', 'DictType': 'dict', 'DictionaryType' : 'dict', 'EllipsisType' : 'type(Ellipsis)', #'FileType' : 'io.IOBase', 'FloatType': 'float', 'IntType': 'int', 'ListType': 'list', 'LongType': 'int', 'ObjectType' : 'object', 'NoneType': 'type(None)', 'NotImplementedType' : 'type(NotImplemented)', 'SliceType' : 'slice', 'StringType': 'bytes', # XXX ? 'StringTypes' : '(str,)', # XXX ? 'TupleType': 'tuple', 'TypeType' : 'type', 'UnicodeType': 'str', 'XRangeType' : 'range', } _pats = ["power< 'types' trailer< '.' name='%s' > >" % t for t in _TYPE_MAPPING] class FixTypes(fixer_base.BaseFix): BM_compatible = True PATTERN = '|'.join(_pats) def transform(self, node, results): new_value = _TYPE_MAPPING.get(results["name"].value) if new_value: return Name(new_value, prefix=node.prefix) return None fix_imports.py 0000644 00000013064 15025176000 0007461 0 ustar 00 """Fix incompatible imports and module references.""" # Authors: Collin Winter, Nick Edds # Local imports from .. import fixer_base from ..fixer_util import Name, attr_chain MAPPING = {'StringIO': 'io', 'cStringIO': 'io', 'cPickle': 'pickle', '__builtin__' : 'builtins', 'copy_reg': 'copyreg', 'Queue': 'queue', 'SocketServer': 'socketserver', 'ConfigParser': 'configparser', 'repr': 'reprlib', 'FileDialog': 'tkinter.filedialog', 'tkFileDialog': 'tkinter.filedialog', 'SimpleDialog': 'tkinter.simpledialog', 'tkSimpleDialog': 'tkinter.simpledialog', 'tkColorChooser': 'tkinter.colorchooser', 'tkCommonDialog': 'tkinter.commondialog', 'Dialog': 'tkinter.dialog', 'Tkdnd': 'tkinter.dnd', 'tkFont': 'tkinter.font', 'tkMessageBox': 'tkinter.messagebox', 'ScrolledText': 'tkinter.scrolledtext', 'Tkconstants': 'tkinter.constants', 'Tix': 'tkinter.tix', 'ttk': 'tkinter.ttk', 'Tkinter': 'tkinter', 'markupbase': '_markupbase', '_winreg': 'winreg', 'thread': '_thread', 'dummy_thread': '_dummy_thread', # anydbm and whichdb are handled by fix_imports2 'dbhash': 'dbm.bsd', 'dumbdbm': 'dbm.dumb', 'dbm': 'dbm.ndbm', 'gdbm': 'dbm.gnu', 'xmlrpclib': 'xmlrpc.client', 'DocXMLRPCServer': 'xmlrpc.server', 'SimpleXMLRPCServer': 'xmlrpc.server', 'httplib': 'http.client', 'htmlentitydefs' : 'html.entities', 'HTMLParser' : 'html.parser', 'Cookie': 'http.cookies', 'cookielib': 'http.cookiejar', 'BaseHTTPServer': 'http.server', 'SimpleHTTPServer': 'http.server', 'CGIHTTPServer': 'http.server', #'test.test_support': 'test.support', 'commands': 'subprocess', 'UserString' : 'collections', 'UserList' : 'collections', 'urlparse' : 'urllib.parse', 'robotparser' : 'urllib.robotparser', } def alternates(members): return "(" + "|".join(map(repr, members)) + ")" def build_pattern(mapping=MAPPING): mod_list = ' | '.join(["module_name='%s'" % key for key in mapping]) bare_names = alternates(mapping.keys()) yield """name_import=import_name< 'import' ((%s) | multiple_imports=dotted_as_names< any* (%s) any* >) > """ % (mod_list, mod_list) yield """import_from< 'from' (%s) 'import' ['('] ( any | import_as_name< any 'as' any > | import_as_names< any* >) [')'] > """ % mod_list yield """import_name< 'import' (dotted_as_name< (%s) 'as' any > | multiple_imports=dotted_as_names< any* dotted_as_name< (%s) 'as' any > any* >) > """ % (mod_list, mod_list) # Find usages of module members in code e.g. thread.foo(bar) yield "power< bare_with_attr=(%s) trailer<'.' any > any* >" % bare_names class FixImports(fixer_base.BaseFix): BM_compatible = True keep_line_order = True # This is overridden in fix_imports2. mapping = MAPPING # We want to run this fixer late, so fix_import doesn't try to make stdlib # renames into relative imports. run_order = 6 def build_pattern(self): return "|".join(build_pattern(self.mapping)) def compile_pattern(self): # We override this, so MAPPING can be pragmatically altered and the # changes will be reflected in PATTERN. self.PATTERN = self.build_pattern() super(FixImports, self).compile_pattern() # Don't match the node if it's within another match. def match(self, node): match = super(FixImports, self).match results = match(node) if results: # Module usage could be in the trailer of an attribute lookup, so we # might have nested matches when "bare_with_attr" is present. if "bare_with_attr" not in results and \ any(match(obj) for obj in attr_chain(node, "parent")): return False return results return False def start_tree(self, tree, filename): super(FixImports, self).start_tree(tree, filename) self.replace = {} def transform(self, node, results): import_mod = results.get("module_name") if import_mod: mod_name = import_mod.value new_name = self.mapping[mod_name] import_mod.replace(Name(new_name, prefix=import_mod.prefix)) if "name_import" in results: # If it's not a "from x import x, y" or "import x as y" import, # marked its usage to be replaced. self.replace[mod_name] = new_name if "multiple_imports" in results: # This is a nasty hack to fix multiple imports on a line (e.g., # "import StringIO, urlparse"). The problem is that I can't # figure out an easy way to make a pattern recognize the keys of # MAPPING randomly sprinkled in an import statement. results = self.match(node) if results: self.transform(node, results) else: # Replace usage of the module. bare_name = results["bare_with_attr"][0] new_name = self.replace.get(bare_name.value) if new_name: bare_name.replace(Name(new_name, prefix=bare_name.prefix)) fix_long.py 0000644 00000000734 15025176000 0006723 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that turns 'long' into 'int' everywhere. """ # Local imports from lib2to3 import fixer_base from lib2to3.fixer_util import is_probably_builtin class FixLong(fixer_base.BaseFix): BM_compatible = True PATTERN = "'long'" def transform(self, node, results): if is_probably_builtin(node): node.value = "int" node.changed() fix_execfile.py 0000644 00000004000 15025176000 0007536 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for execfile. This converts usages of the execfile function into calls to the built-in exec() function. """ from .. import fixer_base from ..fixer_util import (Comma, Name, Call, LParen, RParen, Dot, Node, ArgList, String, syms) class FixExecfile(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< 'execfile' trailer< '(' arglist< filename=any [',' globals=any [',' locals=any ] ] > ')' > > | power< 'execfile' trailer< '(' filename=any ')' > > """ def transform(self, node, results): assert results filename = results["filename"] globals = results.get("globals") locals = results.get("locals") # Copy over the prefix from the right parentheses end of the execfile # call. execfile_paren = node.children[-1].children[-1].clone() # Construct open().read(). open_args = ArgList([filename.clone(), Comma(), String('"rb"', ' ')], rparen=execfile_paren) open_call = Node(syms.power, [Name("open"), open_args]) read = [Node(syms.trailer, [Dot(), Name('read')]), Node(syms.trailer, [LParen(), RParen()])] open_expr = [open_call] + read # Wrap the open call in a compile call. This is so the filename will be # preserved in the execed code. filename_arg = filename.clone() filename_arg.prefix = " " exec_str = String("'exec'", " ") compile_args = open_expr + [Comma(), filename_arg, Comma(), exec_str] compile_call = Call(Name("compile"), compile_args, "") # Finally, replace the execfile call with an exec call. args = [compile_call] if globals is not None: args.extend([Comma(), globals.clone()]) if locals is not None: args.extend([Comma(), locals.clone()]) return Call(Name("exec"), args, prefix=node.prefix) fix_sys_exc.py 0000644 00000002012 15025176000 0007430 0 ustar 00 """Fixer for sys.exc_{type, value, traceback} sys.exc_type -> sys.exc_info()[0] sys.exc_value -> sys.exc_info()[1] sys.exc_traceback -> sys.exc_info()[2] """ # By Jeff Balogh and Benjamin Peterson # Local imports from .. import fixer_base from ..fixer_util import Attr, Call, Name, Number, Subscript, Node, syms class FixSysExc(fixer_base.BaseFix): # This order matches the ordering of sys.exc_info(). exc_info = ["exc_type", "exc_value", "exc_traceback"] BM_compatible = True PATTERN = """ power< 'sys' trailer< dot='.' attribute=(%s) > > """ % '|'.join("'%s'" % e for e in exc_info) def transform(self, node, results): sys_attr = results["attribute"][0] index = Number(self.exc_info.index(sys_attr.value)) call = Call(Name("exc_info"), prefix=sys_attr.prefix) attr = Attr(Name("sys"), call) attr[1].children[0].prefix = results["dot"].prefix attr.append(Subscript(index)) return Node(syms.power, attr, prefix=node.prefix) fix_input.py 0000644 00000001304 15025176000 0007115 0 ustar 00 """Fixer that changes input(...) into eval(input(...)).""" # Author: Andre Roberge # Local imports from .. import fixer_base from ..fixer_util import Call, Name from .. import patcomp context = patcomp.compile_pattern("power< 'eval' trailer< '(' any ')' > >") class FixInput(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< 'input' args=trailer< '(' [any] ')' > > """ def transform(self, node, results): # If we're already wrapped in an eval() call, we're done. if context.match(node.parent.parent): return new = node.clone() new.prefix = "" return Call(Name("eval"), [new], prefix=node.prefix) fix_reload.py 0000644 00000002071 15025176000 0007226 0 ustar 00 """Fixer for reload(). reload(s) -> importlib.reload(s)""" # Local imports from .. import fixer_base from ..fixer_util import ImportAndCall, touch_import class FixReload(fixer_base.BaseFix): BM_compatible = True order = "pre" PATTERN = """ power< 'reload' trailer< lpar='(' ( not(arglist | argument<any '=' any>) obj=any | obj=arglist<(not argument<any '=' any>) any ','> ) rpar=')' > after=any* > """ def transform(self, node, results): if results: # I feel like we should be able to express this logic in the # PATTERN above but I don't know how to do it so... obj = results['obj'] if obj: if (obj.type == self.syms.argument and obj.children[0].value in {'**', '*'}): return # Make no change. names = ('importlib', 'reload') new = ImportAndCall(node, results, names) touch_import(None, 'importlib', node) return new fix_urllib.py 0000644 00000020257 15025176000 0007257 0 ustar 00 """Fix changes imports of urllib which are now incompatible. This is rather similar to fix_imports, but because of the more complex nature of the fixing for urllib, it has its own fixer. """ # Author: Nick Edds # Local imports from lib2to3.fixes.fix_imports import alternates, FixImports from lib2to3.fixer_util import (Name, Comma, FromImport, Newline, find_indentation, Node, syms) MAPPING = {"urllib": [ ("urllib.request", ["URLopener", "FancyURLopener", "urlretrieve", "_urlopener", "urlopen", "urlcleanup", "pathname2url", "url2pathname", "getproxies"]), ("urllib.parse", ["quote", "quote_plus", "unquote", "unquote_plus", "urlencode", "splitattr", "splithost", "splitnport", "splitpasswd", "splitport", "splitquery", "splittag", "splittype", "splituser", "splitvalue", ]), ("urllib.error", ["ContentTooShortError"])], "urllib2" : [ ("urllib.request", ["urlopen", "install_opener", "build_opener", "Request", "OpenerDirector", "BaseHandler", "HTTPDefaultErrorHandler", "HTTPRedirectHandler", "HTTPCookieProcessor", "ProxyHandler", "HTTPPasswordMgr", "HTTPPasswordMgrWithDefaultRealm", "AbstractBasicAuthHandler", "HTTPBasicAuthHandler", "ProxyBasicAuthHandler", "AbstractDigestAuthHandler", "HTTPDigestAuthHandler", "ProxyDigestAuthHandler", "HTTPHandler", "HTTPSHandler", "FileHandler", "FTPHandler", "CacheFTPHandler", "UnknownHandler"]), ("urllib.error", ["URLError", "HTTPError"]), ] } # Duplicate the url parsing functions for urllib2. MAPPING["urllib2"].append(MAPPING["urllib"][1]) def build_pattern(): bare = set() for old_module, changes in MAPPING.items(): for change in changes: new_module, members = change members = alternates(members) yield """import_name< 'import' (module=%r | dotted_as_names< any* module=%r any* >) > """ % (old_module, old_module) yield """import_from< 'from' mod_member=%r 'import' ( member=%s | import_as_name< member=%s 'as' any > | import_as_names< members=any* >) > """ % (old_module, members, members) yield """import_from< 'from' module_star=%r 'import' star='*' > """ % old_module yield """import_name< 'import' dotted_as_name< module_as=%r 'as' any > > """ % old_module # bare_with_attr has a special significance for FixImports.match(). yield """power< bare_with_attr=%r trailer< '.' member=%s > any* > """ % (old_module, members) class FixUrllib(FixImports): def build_pattern(self): return "|".join(build_pattern()) def transform_import(self, node, results): """Transform for the basic import case. Replaces the old import name with a comma separated list of its replacements. """ import_mod = results.get("module") pref = import_mod.prefix names = [] # create a Node list of the replacement modules for name in MAPPING[import_mod.value][:-1]: names.extend([Name(name[0], prefix=pref), Comma()]) names.append(Name(MAPPING[import_mod.value][-1][0], prefix=pref)) import_mod.replace(names) def transform_member(self, node, results): """Transform for imports of specific module elements. Replaces the module to be imported from with the appropriate new module. """ mod_member = results.get("mod_member") pref = mod_member.prefix member = results.get("member") # Simple case with only a single member being imported if member: # this may be a list of length one, or just a node if isinstance(member, list): member = member[0] new_name = None for change in MAPPING[mod_member.value]: if member.value in change[1]: new_name = change[0] break if new_name: mod_member.replace(Name(new_name, prefix=pref)) else: self.cannot_convert(node, "This is an invalid module element") # Multiple members being imported else: # a dictionary for replacements, order matters modules = [] mod_dict = {} members = results["members"] for member in members: # we only care about the actual members if member.type == syms.import_as_name: as_name = member.children[2].value member_name = member.children[0].value else: member_name = member.value as_name = None if member_name != ",": for change in MAPPING[mod_member.value]: if member_name in change[1]: if change[0] not in mod_dict: modules.append(change[0]) mod_dict.setdefault(change[0], []).append(member) new_nodes = [] indentation = find_indentation(node) first = True def handle_name(name, prefix): if name.type == syms.import_as_name: kids = [Name(name.children[0].value, prefix=prefix), name.children[1].clone(), name.children[2].clone()] return [Node(syms.import_as_name, kids)] return [Name(name.value, prefix=prefix)] for module in modules: elts = mod_dict[module] names = [] for elt in elts[:-1]: names.extend(handle_name(elt, pref)) names.append(Comma()) names.extend(handle_name(elts[-1], pref)) new = FromImport(module, names) if not first or node.parent.prefix.endswith(indentation): new.prefix = indentation new_nodes.append(new) first = False if new_nodes: nodes = [] for new_node in new_nodes[:-1]: nodes.extend([new_node, Newline()]) nodes.append(new_nodes[-1]) node.replace(nodes) else: self.cannot_convert(node, "All module elements are invalid") def transform_dot(self, node, results): """Transform for calls to module members in code.""" module_dot = results.get("bare_with_attr") member = results.get("member") new_name = None if isinstance(member, list): member = member[0] for change in MAPPING[module_dot.value]: if member.value in change[1]: new_name = change[0] break if new_name: module_dot.replace(Name(new_name, prefix=module_dot.prefix)) else: self.cannot_convert(node, "This is an invalid module element") def transform(self, node, results): if results.get("module"): self.transform_import(node, results) elif results.get("mod_member"): self.transform_member(node, results) elif results.get("bare_with_attr"): self.transform_dot(node, results) # Renaming and star imports are not supported for these modules. elif results.get("module_star"): self.cannot_convert(node, "Cannot handle star imports.") elif results.get("module_as"): self.cannot_convert(node, "This module is now multiple modules") fix_exitfunc.py 0000644 00000004677 15025176000 0007623 0 ustar 00 """ Convert use of sys.exitfunc to use the atexit module. """ # Author: Benjamin Peterson from lib2to3 import pytree, fixer_base from lib2to3.fixer_util import Name, Attr, Call, Comma, Newline, syms class FixExitfunc(fixer_base.BaseFix): keep_line_order = True BM_compatible = True PATTERN = """ ( sys_import=import_name<'import' ('sys' | dotted_as_names< (any ',')* 'sys' (',' any)* > ) > | expr_stmt< power< 'sys' trailer< '.' 'exitfunc' > > '=' func=any > ) """ def __init__(self, *args): super(FixExitfunc, self).__init__(*args) def start_tree(self, tree, filename): super(FixExitfunc, self).start_tree(tree, filename) self.sys_import = None def transform(self, node, results): # First, find the sys import. We'll just hope it's global scope. if "sys_import" in results: if self.sys_import is None: self.sys_import = results["sys_import"] return func = results["func"].clone() func.prefix = "" register = pytree.Node(syms.power, Attr(Name("atexit"), Name("register")) ) call = Call(register, [func], node.prefix) node.replace(call) if self.sys_import is None: # That's interesting. self.warning(node, "Can't find sys import; Please add an atexit " "import at the top of your file.") return # Now add an atexit import after the sys import. names = self.sys_import.children[1] if names.type == syms.dotted_as_names: names.append_child(Comma()) names.append_child(Name("atexit", " ")) else: containing_stmt = self.sys_import.parent position = containing_stmt.children.index(self.sys_import) stmt_container = containing_stmt.parent new_import = pytree.Node(syms.import_name, [Name("import"), Name("atexit", " ")] ) new = pytree.Node(syms.simple_stmt, [new_import]) containing_stmt.insert_child(position + 1, Newline()) containing_stmt.insert_child(position + 2, new) fix_print.py 0000644 00000005434 15025176000 0007122 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for print. Change: 'print' into 'print()' 'print ...' into 'print(...)' 'print ... ,' into 'print(..., end=" ")' 'print >>x, ...' into 'print(..., file=x)' No changes are applied if print_function is imported from __future__ """ # Local imports from .. import patcomp from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Name, Call, Comma, String parend_expr = patcomp.compile_pattern( """atom< '(' [atom|STRING|NAME] ')' >""" ) class FixPrint(fixer_base.BaseFix): BM_compatible = True PATTERN = """ simple_stmt< any* bare='print' any* > | print_stmt """ def transform(self, node, results): assert results bare_print = results.get("bare") if bare_print: # Special-case print all by itself bare_print.replace(Call(Name("print"), [], prefix=bare_print.prefix)) return assert node.children[0] == Name("print") args = node.children[1:] if len(args) == 1 and parend_expr.match(args[0]): # We don't want to keep sticking parens around an # already-parenthesised expression. return sep = end = file = None if args and args[-1] == Comma(): args = args[:-1] end = " " if args and args[0] == pytree.Leaf(token.RIGHTSHIFT, ">>"): assert len(args) >= 2 file = args[1].clone() args = args[3:] # Strip a possible comma after the file expression # Now synthesize a print(args, sep=..., end=..., file=...) node. l_args = [arg.clone() for arg in args] if l_args: l_args[0].prefix = "" if sep is not None or end is not None or file is not None: if sep is not None: self.add_kwarg(l_args, "sep", String(repr(sep))) if end is not None: self.add_kwarg(l_args, "end", String(repr(end))) if file is not None: self.add_kwarg(l_args, "file", file) n_stmt = Call(Name("print"), l_args) n_stmt.prefix = node.prefix return n_stmt def add_kwarg(self, l_nodes, s_kwd, n_expr): # XXX All this prefix-setting may lose comments (though rarely) n_expr.prefix = "" n_argument = pytree.Node(self.syms.argument, (Name(s_kwd), pytree.Leaf(token.EQUAL, "="), n_expr)) if l_nodes: l_nodes.append(Comma()) n_argument.prefix = " " l_nodes.append(n_argument) fix_idioms.py 0000644 00000011414 15025176000 0007245 0 ustar 00 """Adjust some old Python 2 idioms to their modern counterparts. * Change some type comparisons to isinstance() calls: type(x) == T -> isinstance(x, T) type(x) is T -> isinstance(x, T) type(x) != T -> not isinstance(x, T) type(x) is not T -> not isinstance(x, T) * Change "while 1:" into "while True:". * Change both v = list(EXPR) v.sort() foo(v) and the more general v = EXPR v.sort() foo(v) into v = sorted(EXPR) foo(v) """ # Author: Jacques Frechet, Collin Winter # Local imports from .. import fixer_base from ..fixer_util import Call, Comma, Name, Node, BlankLine, syms CMP = "(n='!=' | '==' | 'is' | n=comp_op< 'is' 'not' >)" TYPE = "power< 'type' trailer< '(' x=any ')' > >" class FixIdioms(fixer_base.BaseFix): explicit = True # The user must ask for this fixer PATTERN = r""" isinstance=comparison< %s %s T=any > | isinstance=comparison< T=any %s %s > | while_stmt< 'while' while='1' ':' any+ > | sorted=any< any* simple_stmt< expr_stmt< id1=any '=' power< list='list' trailer< '(' (not arglist<any+>) any ')' > > > '\n' > sort= simple_stmt< power< id2=any trailer< '.' 'sort' > trailer< '(' ')' > > '\n' > next=any* > | sorted=any< any* simple_stmt< expr_stmt< id1=any '=' expr=any > '\n' > sort= simple_stmt< power< id2=any trailer< '.' 'sort' > trailer< '(' ')' > > '\n' > next=any* > """ % (TYPE, CMP, CMP, TYPE) def match(self, node): r = super(FixIdioms, self).match(node) # If we've matched one of the sort/sorted subpatterns above, we # want to reject matches where the initial assignment and the # subsequent .sort() call involve different identifiers. if r and "sorted" in r: if r["id1"] == r["id2"]: return r return None return r def transform(self, node, results): if "isinstance" in results: return self.transform_isinstance(node, results) elif "while" in results: return self.transform_while(node, results) elif "sorted" in results: return self.transform_sort(node, results) else: raise RuntimeError("Invalid match") def transform_isinstance(self, node, results): x = results["x"].clone() # The thing inside of type() T = results["T"].clone() # The type being compared against x.prefix = "" T.prefix = " " test = Call(Name("isinstance"), [x, Comma(), T]) if "n" in results: test.prefix = " " test = Node(syms.not_test, [Name("not"), test]) test.prefix = node.prefix return test def transform_while(self, node, results): one = results["while"] one.replace(Name("True", prefix=one.prefix)) def transform_sort(self, node, results): sort_stmt = results["sort"] next_stmt = results["next"] list_call = results.get("list") simple_expr = results.get("expr") if list_call: list_call.replace(Name("sorted", prefix=list_call.prefix)) elif simple_expr: new = simple_expr.clone() new.prefix = "" simple_expr.replace(Call(Name("sorted"), [new], prefix=simple_expr.prefix)) else: raise RuntimeError("should not have reached here") sort_stmt.remove() btwn = sort_stmt.prefix # Keep any prefix lines between the sort_stmt and the list_call and # shove them right after the sorted() call. if "\n" in btwn: if next_stmt: # The new prefix should be everything from the sort_stmt's # prefix up to the last newline, then the old prefix after a new # line. prefix_lines = (btwn.rpartition("\n")[0], next_stmt[0].prefix) next_stmt[0].prefix = "\n".join(prefix_lines) else: assert list_call.parent assert list_call.next_sibling is None # Put a blank line after list_call and set its prefix. end_line = BlankLine() list_call.parent.append_child(end_line) assert list_call.next_sibling is end_line # The new prefix should be everything up to the first new line # of sort_stmt's prefix. end_line.prefix = btwn.rpartition("\n")[0] fix_map.py 0000644 00000007070 15025176000 0006541 0 ustar 00 # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer that changes map(F, ...) into list(map(F, ...)) unless there exists a 'from future_builtins import map' statement in the top-level namespace. As a special case, map(None, X) is changed into list(X). (This is necessary because the semantics are changed in this case -- the new map(None, X) is equivalent to [(x,) for x in X].) We avoid the transformation (except for the special case mentioned above) if the map() call is directly contained in iter(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:. NOTE: This is still not correct if the original code was depending on map(F, X, Y, ...) to go on until the longest argument is exhausted, substituting None for missing values -- like zip(), it now stops as soon as the shortest argument is exhausted. """ # Local imports from ..pgen2 import token from .. import fixer_base from ..fixer_util import Name, ArgList, Call, ListComp, in_special_context from ..pygram import python_symbols as syms from ..pytree import Node class FixMap(fixer_base.ConditionalFix): BM_compatible = True PATTERN = """ map_none=power< 'map' trailer< '(' arglist< 'None' ',' arg=any [','] > ')' > [extra_trailers=trailer*] > | map_lambda=power< 'map' trailer< '(' arglist< lambdef< 'lambda' (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any > ',' it=any > ')' > [extra_trailers=trailer*] > | power< 'map' args=trailer< '(' [any] ')' > [extra_trailers=trailer*] > """ skip_on = 'future_builtins.map' def transform(self, node, results): if self.should_skip(node): return trailers = [] if 'extra_trailers' in results: for t in results['extra_trailers']: trailers.append(t.clone()) if node.parent.type == syms.simple_stmt: self.warning(node, "You should use a for loop here") new = node.clone() new.prefix = "" new = Call(Name("list"), [new]) elif "map_lambda" in results: new = ListComp(results["xp"].clone(), results["fp"].clone(), results["it"].clone()) new = Node(syms.power, [new] + trailers, prefix="") else: if "map_none" in results: new = results["arg"].clone() new.prefix = "" else: if "args" in results: args = results["args"] if args.type == syms.trailer and \ args.children[1].type == syms.arglist and \ args.children[1].children[0].type == token.NAME and \ args.children[1].children[0].value == "None": self.warning(node, "cannot convert map(None, ...) " "with multiple arguments because map() " "now truncates to the shortest sequence") return new = Node(syms.power, [Name("map"), args.clone()]) new.prefix = "" if in_special_context(node): return None new = Node(syms.power, [Name("list"), ArgList([new])] + trailers) new.prefix = "" new.prefix = node.prefix return new fix_paren.py 0000644 00000002312 15025176000 0007063 0 ustar 00 """Fixer that adds parentheses where they are required This converts ``[x for x in 1, 2]`` to ``[x for x in (1, 2)]``.""" # By Taek Joo Kim and Benjamin Peterson # Local imports from .. import fixer_base from ..fixer_util import LParen, RParen # XXX This doesn't support nested for loops like [x for x in 1, 2 for x in 1, 2] class FixParen(fixer_base.BaseFix): BM_compatible = True PATTERN = """ atom< ('[' | '(') (listmaker< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > > | testlist_gexp< any comp_for< 'for' NAME 'in' target=testlist_safe< any (',' any)+ [','] > [any] > >) (']' | ')') > """ def transform(self, node, results): target = results["target"] lparen = LParen() lparen.prefix = target.prefix target.prefix = "" # Make it hug the parentheses target.insert_child(0, lparen) target.append_child(RParen()) fix_next.py 0000644 00000006146 15025176000 0006745 0 ustar 00 """Fixer for it.next() -> next(it), per PEP 3114.""" # Author: Collin Winter # Things that currently aren't covered: # - listcomp "next" names aren't warned # - "with" statement targets aren't checked # Local imports from ..pgen2 import token from ..pygram import python_symbols as syms from .. import fixer_base from ..fixer_util import Name, Call, find_binding bind_warning = "Calls to builtin next() possibly shadowed by global binding" class FixNext(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< base=any+ trailer< '.' attr='next' > trailer< '(' ')' > > | power< head=any+ trailer< '.' attr='next' > not trailer< '(' ')' > > | classdef< 'class' any+ ':' suite< any* funcdef< 'def' name='next' parameters< '(' NAME ')' > any+ > any* > > | global=global_stmt< 'global' any* 'next' any* > """ order = "pre" # Pre-order tree traversal def start_tree(self, tree, filename): super(FixNext, self).start_tree(tree, filename) n = find_binding('next', tree) if n: self.warning(n, bind_warning) self.shadowed_next = True else: self.shadowed_next = False def transform(self, node, results): assert results base = results.get("base") attr = results.get("attr") name = results.get("name") if base: if self.shadowed_next: attr.replace(Name("__next__", prefix=attr.prefix)) else: base = [n.clone() for n in base] base[0].prefix = "" node.replace(Call(Name("next", prefix=node.prefix), base)) elif name: n = Name("__next__", prefix=name.prefix) name.replace(n) elif attr: # We don't do this transformation if we're assigning to "x.next". # Unfortunately, it doesn't seem possible to do this in PATTERN, # so it's being done here. if is_assign_target(node): head = results["head"] if "".join([str(n) for n in head]).strip() == '__builtin__': self.warning(node, bind_warning) return attr.replace(Name("__next__")) elif "global" in results: self.warning(node, bind_warning) self.shadowed_next = True ### The following functions help test if node is part of an assignment ### target. def is_assign_target(node): assign = find_assign(node) if assign is None: return False for child in assign.children: if child.type == token.EQUAL: return False elif is_subtree(child, node): return True return False def find_assign(node): if node.type == syms.expr_stmt: return node if node.type == syms.simple_stmt or node.parent is None: return None return find_assign(node.parent) def is_subtree(root, node): if root == node: return True return any(is_subtree(c, node) for c in root.children) fix_import.py 0000644 00000006270 15025176000 0007277 0 ustar 00 """Fixer for import statements. If spam is being imported from the local directory, this import: from spam import eggs Becomes: from .spam import eggs And this import: import spam Becomes: from . import spam """ # Local imports from .. import fixer_base from os.path import dirname, join, exists, sep from ..fixer_util import FromImport, syms, token def traverse_imports(names): """ Walks over all the names imported in a dotted_as_names node. """ pending = [names] while pending: node = pending.pop() if node.type == token.NAME: yield node.value elif node.type == syms.dotted_name: yield "".join([ch.value for ch in node.children]) elif node.type == syms.dotted_as_name: pending.append(node.children[0]) elif node.type == syms.dotted_as_names: pending.extend(node.children[::-2]) else: raise AssertionError("unknown node type") class FixImport(fixer_base.BaseFix): BM_compatible = True PATTERN = """ import_from< 'from' imp=any 'import' ['('] any [')'] > | import_name< 'import' imp=any > """ def start_tree(self, tree, name): super(FixImport, self).start_tree(tree, name) self.skip = "absolute_import" in tree.future_features def transform(self, node, results): if self.skip: return imp = results['imp'] if node.type == syms.import_from: # Some imps are top-level (eg: 'import ham') # some are first level (eg: 'import ham.eggs') # some are third level (eg: 'import ham.eggs as spam') # Hence, the loop while not hasattr(imp, 'value'): imp = imp.children[0] if self.probably_a_local_import(imp.value): imp.value = "." + imp.value imp.changed() else: have_local = False have_absolute = False for mod_name in traverse_imports(imp): if self.probably_a_local_import(mod_name): have_local = True else: have_absolute = True if have_absolute: if have_local: # We won't handle both sibling and absolute imports in the # same statement at the moment. self.warning(node, "absolute and local imports together") return new = FromImport(".", [imp]) new.prefix = node.prefix return new def probably_a_local_import(self, imp_name): if imp_name.startswith("."): # Relative imports are certainly not local imports. return False imp_name = imp_name.split(".", 1)[0] base_path = dirname(self.filename) base_path = join(base_path, imp_name) # If there is no __init__.py next to the file its not in a package # so can't be a relative import. if not exists(join(dirname(base_path), "__init__.py")): return False for ext in [".py", sep, ".pyc", ".so", ".sl", ".pyd"]: if exists(base_path + ext): return True return False fix_reduce.py 0000644 00000001505 15025176000 0007230 0 ustar 00 # Copyright 2008 Armin Ronacher. # Licensed to PSF under a Contributor Agreement. """Fixer for reduce(). Makes sure reduce() is imported from the functools module if reduce is used in that module. """ from lib2to3 import fixer_base from lib2to3.fixer_util import touch_import class FixReduce(fixer_base.BaseFix): BM_compatible = True order = "pre" PATTERN = """ power< 'reduce' trailer< '(' arglist< ( (not(argument<any '=' any>) any ',' not(argument<any '=' any>) any) | (not(argument<any '=' any>) any ',' not(argument<any '=' any>) any ',' not(argument<any '=' any>) any) ) > ')' > > """ def transform(self, node, results): touch_import('functools', 'reduce', node) fix_nonzero.py 0000644 00000001117 15025176000 0007452 0 ustar 00 """Fixer for __nonzero__ -> __bool__ methods.""" # Author: Collin Winter # Local imports from .. import fixer_base from ..fixer_util import Name class FixNonzero(fixer_base.BaseFix): BM_compatible = True PATTERN = """ classdef< 'class' any+ ':' suite< any* funcdef< 'def' name='__nonzero__' parameters< '(' NAME ')' > any+ > any* > > """ def transform(self, node, results): name = results["name"] new = Name("__bool__", prefix=name.prefix) name.replace(new) fix_zip.py 0000644 00000002411 15025176000 0006560 0 ustar 00 """ Fixer that changes zip(seq0, seq1, ...) into list(zip(seq0, seq1, ...) unless there exists a 'from future_builtins import zip' statement in the top-level namespace. We avoid the transformation if the zip() call is directly contained in iter(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:. """ # Local imports from .. import fixer_base from ..pytree import Node from ..pygram import python_symbols as syms from ..fixer_util import Name, ArgList, in_special_context class FixZip(fixer_base.ConditionalFix): BM_compatible = True PATTERN = """ power< 'zip' args=trailer< '(' [any] ')' > [trailers=trailer*] > """ skip_on = "future_builtins.zip" def transform(self, node, results): if self.should_skip(node): return if in_special_context(node): return None args = results['args'].clone() args.prefix = "" trailers = [] if 'trailers' in results: trailers = [n.clone() for n in results['trailers']] for n in trailers: n.prefix = "" new = Node(syms.power, [Name("zip"), args], prefix="") new = Node(syms.power, [Name("list"), ArgList([new])] + trailers) new.prefix = node.prefix return new fix_raw_input.py 0000644 00000000706 15025176000 0007773 0 ustar 00 """Fixer that changes raw_input(...) into input(...).""" # Author: Andre Roberge # Local imports from .. import fixer_base from ..fixer_util import Name class FixRawInput(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< name='raw_input' trailer< '(' [any] ')' > any* > """ def transform(self, node, results): name = results["name"] name.replace(Name("input", prefix=name.prefix)) fix_tuple_params.py 0000644 00000012675 15025176000 0010467 0 ustar 00 """Fixer for function definitions with tuple parameters. def func(((a, b), c), d): ... -> def func(x, d): ((a, b), c) = x ... It will also support lambdas: lambda (x, y): x + y -> lambda t: t[0] + t[1] # The parens are a syntax error in Python 3 lambda (x): x + y -> lambda x: x + y """ # Author: Collin Winter # Local imports from .. import pytree from ..pgen2 import token from .. import fixer_base from ..fixer_util import Assign, Name, Newline, Number, Subscript, syms def is_docstring(stmt): return isinstance(stmt, pytree.Node) and \ stmt.children[0].type == token.STRING class FixTupleParams(fixer_base.BaseFix): run_order = 4 #use a lower order since lambda is part of other #patterns BM_compatible = True PATTERN = """ funcdef< 'def' any parameters< '(' args=any ')' > ['->' any] ':' suite=any+ > | lambda= lambdef< 'lambda' args=vfpdef< '(' inner=any ')' > ':' body=any > """ def transform(self, node, results): if "lambda" in results: return self.transform_lambda(node, results) new_lines = [] suite = results["suite"] args = results["args"] # This crap is so "def foo(...): x = 5; y = 7" is handled correctly. # TODO(cwinter): suite-cleanup if suite[0].children[1].type == token.INDENT: start = 2 indent = suite[0].children[1].value end = Newline() else: start = 0 indent = "; " end = pytree.Leaf(token.INDENT, "") # We need access to self for new_name(), and making this a method # doesn't feel right. Closing over self and new_lines makes the # code below cleaner. def handle_tuple(tuple_arg, add_prefix=False): n = Name(self.new_name()) arg = tuple_arg.clone() arg.prefix = "" stmt = Assign(arg, n.clone()) if add_prefix: n.prefix = " " tuple_arg.replace(n) new_lines.append(pytree.Node(syms.simple_stmt, [stmt, end.clone()])) if args.type == syms.tfpdef: handle_tuple(args) elif args.type == syms.typedargslist: for i, arg in enumerate(args.children): if arg.type == syms.tfpdef: # Without add_prefix, the emitted code is correct, # just ugly. handle_tuple(arg, add_prefix=(i > 0)) if not new_lines: return # This isn't strictly necessary, but it plays nicely with other fixers. # TODO(cwinter) get rid of this when children becomes a smart list for line in new_lines: line.parent = suite[0] # TODO(cwinter) suite-cleanup after = start if start == 0: new_lines[0].prefix = " " elif is_docstring(suite[0].children[start]): new_lines[0].prefix = indent after = start + 1 for line in new_lines: line.parent = suite[0] suite[0].children[after:after] = new_lines for i in range(after+1, after+len(new_lines)+1): suite[0].children[i].prefix = indent suite[0].changed() def transform_lambda(self, node, results): args = results["args"] body = results["body"] inner = simplify_args(results["inner"]) # Replace lambda ((((x)))): x with lambda x: x if inner.type == token.NAME: inner = inner.clone() inner.prefix = " " args.replace(inner) return params = find_params(args) to_index = map_to_index(params) tup_name = self.new_name(tuple_name(params)) new_param = Name(tup_name, prefix=" ") args.replace(new_param.clone()) for n in body.post_order(): if n.type == token.NAME and n.value in to_index: subscripts = [c.clone() for c in to_index[n.value]] new = pytree.Node(syms.power, [new_param.clone()] + subscripts) new.prefix = n.prefix n.replace(new) ### Helper functions for transform_lambda() def simplify_args(node): if node.type in (syms.vfplist, token.NAME): return node elif node.type == syms.vfpdef: # These look like vfpdef< '(' x ')' > where x is NAME # or another vfpdef instance (leading to recursion). while node.type == syms.vfpdef: node = node.children[1] return node raise RuntimeError("Received unexpected node %s" % node) def find_params(node): if node.type == syms.vfpdef: return find_params(node.children[1]) elif node.type == token.NAME: return node.value return [find_params(c) for c in node.children if c.type != token.COMMA] def map_to_index(param_list, prefix=[], d=None): if d is None: d = {} for i, obj in enumerate(param_list): trailer = [Subscript(Number(str(i)))] if isinstance(obj, list): map_to_index(obj, trailer, d=d) else: d[obj] = prefix + trailer return d def tuple_name(param_list): l = [] for obj in param_list: if isinstance(obj, list): l.append(tuple_name(obj)) else: l.append(obj) return "_".join(l) __init__.py 0000644 00000000057 15025176000 0006653 0 ustar 00 # Dummy file to make this directory a package. fix_funcattrs.py 0000644 00000001204 15025176000 0007766 0 ustar 00 """Fix function attribute names (f.func_x -> f.__x__).""" # Author: Collin Winter # Local imports from .. import fixer_base from ..fixer_util import Name class FixFuncattrs(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< any+ trailer< '.' attr=('func_closure' | 'func_doc' | 'func_globals' | 'func_name' | 'func_defaults' | 'func_code' | 'func_dict') > any* > """ def transform(self, node, results): attr = results["attr"][0] attr.replace(Name(("__%s__" % attr.value[5:]), prefix=attr.prefix)) fix_exec.py 0000644 00000001723 15025176000 0006707 0 ustar 00 # Copyright 2006 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for exec. This converts usages of the exec statement into calls to a built-in exec() function. exec code in ns1, ns2 -> exec(code, ns1, ns2) """ # Local imports from .. import fixer_base from ..fixer_util import Comma, Name, Call class FixExec(fixer_base.BaseFix): BM_compatible = True PATTERN = """ exec_stmt< 'exec' a=any 'in' b=any [',' c=any] > | exec_stmt< 'exec' (not atom<'(' [any] ')'>) a=any > """ def transform(self, node, results): assert results syms = self.syms a = results["a"] b = results.get("b") c = results.get("c") args = [a.clone()] args[0].prefix = "" if b is not None: args.extend([Comma(), b.clone()]) if c is not None: args.extend([Comma(), c.clone()]) return Call(Name("exec"), args, prefix=node.prefix) fix_metaclass.py 0000644 00000020005 15025176000 0007731 0 ustar 00 """Fixer for __metaclass__ = X -> (metaclass=X) methods. The various forms of classef (inherits nothing, inherits once, inherits many) don't parse the same in the CST so we look at ALL classes for a __metaclass__ and if we find one normalize the inherits to all be an arglist. For one-liner classes ('class X: pass') there is no indent/dedent so we normalize those into having a suite. Moving the __metaclass__ into the classdef can also cause the class body to be empty so there is some special casing for that as well. This fixer also tries very hard to keep original indenting and spacing in all those corner cases. """ # Author: Jack Diederich # Local imports from .. import fixer_base from ..pygram import token from ..fixer_util import syms, Node, Leaf def has_metaclass(parent): """ we have to check the cls_node without changing it. There are two possibilities: 1) clsdef => suite => simple_stmt => expr_stmt => Leaf('__meta') 2) clsdef => simple_stmt => expr_stmt => Leaf('__meta') """ for node in parent.children: if node.type == syms.suite: return has_metaclass(node) elif node.type == syms.simple_stmt and node.children: expr_node = node.children[0] if expr_node.type == syms.expr_stmt and expr_node.children: left_side = expr_node.children[0] if isinstance(left_side, Leaf) and \ left_side.value == '__metaclass__': return True return False def fixup_parse_tree(cls_node): """ one-line classes don't get a suite in the parse tree so we add one to normalize the tree """ for node in cls_node.children: if node.type == syms.suite: # already in the preferred format, do nothing return # !%@#! one-liners have no suite node, we have to fake one up for i, node in enumerate(cls_node.children): if node.type == token.COLON: break else: raise ValueError("No class suite and no ':'!") # move everything into a suite node suite = Node(syms.suite, []) while cls_node.children[i+1:]: move_node = cls_node.children[i+1] suite.append_child(move_node.clone()) move_node.remove() cls_node.append_child(suite) node = suite def fixup_simple_stmt(parent, i, stmt_node): """ if there is a semi-colon all the parts count as part of the same simple_stmt. We just want the __metaclass__ part so we move everything after the semi-colon into its own simple_stmt node """ for semi_ind, node in enumerate(stmt_node.children): if node.type == token.SEMI: # *sigh* break else: return node.remove() # kill the semicolon new_expr = Node(syms.expr_stmt, []) new_stmt = Node(syms.simple_stmt, [new_expr]) while stmt_node.children[semi_ind:]: move_node = stmt_node.children[semi_ind] new_expr.append_child(move_node.clone()) move_node.remove() parent.insert_child(i, new_stmt) new_leaf1 = new_stmt.children[0].children[0] old_leaf1 = stmt_node.children[0].children[0] new_leaf1.prefix = old_leaf1.prefix def remove_trailing_newline(node): if node.children and node.children[-1].type == token.NEWLINE: node.children[-1].remove() def find_metas(cls_node): # find the suite node (Mmm, sweet nodes) for node in cls_node.children: if node.type == syms.suite: break else: raise ValueError("No class suite!") # look for simple_stmt[ expr_stmt[ Leaf('__metaclass__') ] ] for i, simple_node in list(enumerate(node.children)): if simple_node.type == syms.simple_stmt and simple_node.children: expr_node = simple_node.children[0] if expr_node.type == syms.expr_stmt and expr_node.children: # Check if the expr_node is a simple assignment. left_node = expr_node.children[0] if isinstance(left_node, Leaf) and \ left_node.value == '__metaclass__': # We found an assignment to __metaclass__. fixup_simple_stmt(node, i, simple_node) remove_trailing_newline(simple_node) yield (node, i, simple_node) def fixup_indent(suite): """ If an INDENT is followed by a thing with a prefix then nuke the prefix Otherwise we get in trouble when removing __metaclass__ at suite start """ kids = suite.children[::-1] # find the first indent while kids: node = kids.pop() if node.type == token.INDENT: break # find the first Leaf while kids: node = kids.pop() if isinstance(node, Leaf) and node.type != token.DEDENT: if node.prefix: node.prefix = '' return else: kids.extend(node.children[::-1]) class FixMetaclass(fixer_base.BaseFix): BM_compatible = True PATTERN = """ classdef<any*> """ def transform(self, node, results): if not has_metaclass(node): return fixup_parse_tree(node) # find metaclasses, keep the last one last_metaclass = None for suite, i, stmt in find_metas(node): last_metaclass = stmt stmt.remove() text_type = node.children[0].type # always Leaf(nnn, 'class') # figure out what kind of classdef we have if len(node.children) == 7: # Node(classdef, ['class', 'name', '(', arglist, ')', ':', suite]) # 0 1 2 3 4 5 6 if node.children[3].type == syms.arglist: arglist = node.children[3] # Node(classdef, ['class', 'name', '(', 'Parent', ')', ':', suite]) else: parent = node.children[3].clone() arglist = Node(syms.arglist, [parent]) node.set_child(3, arglist) elif len(node.children) == 6: # Node(classdef, ['class', 'name', '(', ')', ':', suite]) # 0 1 2 3 4 5 arglist = Node(syms.arglist, []) node.insert_child(3, arglist) elif len(node.children) == 4: # Node(classdef, ['class', 'name', ':', suite]) # 0 1 2 3 arglist = Node(syms.arglist, []) node.insert_child(2, Leaf(token.RPAR, ')')) node.insert_child(2, arglist) node.insert_child(2, Leaf(token.LPAR, '(')) else: raise ValueError("Unexpected class definition") # now stick the metaclass in the arglist meta_txt = last_metaclass.children[0].children[0] meta_txt.value = 'metaclass' orig_meta_prefix = meta_txt.prefix if arglist.children: arglist.append_child(Leaf(token.COMMA, ',')) meta_txt.prefix = ' ' else: meta_txt.prefix = '' # compact the expression "metaclass = Meta" -> "metaclass=Meta" expr_stmt = last_metaclass.children[0] assert expr_stmt.type == syms.expr_stmt expr_stmt.children[1].prefix = '' expr_stmt.children[2].prefix = '' arglist.append_child(last_metaclass) fixup_indent(suite) # check for empty suite if not suite.children: # one-liner that was just __metaclass_ suite.remove() pass_leaf = Leaf(text_type, 'pass') pass_leaf.prefix = orig_meta_prefix node.append_child(pass_leaf) node.append_child(Leaf(token.NEWLINE, '\n')) elif len(suite.children) > 1 and \ (suite.children[-2].type == token.INDENT and suite.children[-1].type == token.DEDENT): # there was only one line in the class body and it was __metaclass__ pass_leaf = Leaf(text_type, 'pass') suite.insert_child(-1, pass_leaf) suite.insert_child(-1, Leaf(token.NEWLINE, '\n')) fix_isinstance.py 0000644 00000003110 15025176000 0010113 0 ustar 00 # Copyright 2008 Armin Ronacher. # Licensed to PSF under a Contributor Agreement. """Fixer that cleans up a tuple argument to isinstance after the tokens in it were fixed. This is mainly used to remove double occurrences of tokens as a leftover of the long -> int / unicode -> str conversion. eg. isinstance(x, (int, long)) -> isinstance(x, (int, int)) -> isinstance(x, int) """ from .. import fixer_base from ..fixer_util import token class FixIsinstance(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< 'isinstance' trailer< '(' arglist< any ',' atom< '(' args=testlist_gexp< any+ > ')' > > ')' > > """ run_order = 6 def transform(self, node, results): names_inserted = set() testlist = results["args"] args = testlist.children new_args = [] iterator = enumerate(args) for idx, arg in iterator: if arg.type == token.NAME and arg.value in names_inserted: if idx < len(args) - 1 and args[idx + 1].type == token.COMMA: next(iterator) continue else: new_args.append(arg) if arg.type == token.NAME: names_inserted.add(arg.value) if new_args and new_args[-1].type == token.COMMA: del new_args[-1] if len(new_args) == 1: atom = testlist.parent new_args[0].prefix = atom.prefix atom.replace(new_args[0]) else: args[:] = new_args node.changed() fix_ws_comma.py 0000644 00000002102 15025176000 0007560 0 ustar 00 """Fixer that changes 'a ,b' into 'a, b'. This also changes '{a :b}' into '{a: b}', but does not touch other uses of colons. It does not touch other uses of whitespace. """ from .. import pytree from ..pgen2 import token from .. import fixer_base class FixWsComma(fixer_base.BaseFix): explicit = True # The user must ask for this fixers PATTERN = """ any<(not(',') any)+ ',' ((not(',') any)+ ',')* [not(',') any]> """ COMMA = pytree.Leaf(token.COMMA, ",") COLON = pytree.Leaf(token.COLON, ":") SEPS = (COMMA, COLON) def transform(self, node, results): new = node.clone() comma = False for child in new.children: if child in self.SEPS: prefix = child.prefix if prefix.isspace() and "\n" not in prefix: child.prefix = "" comma = True else: if comma: prefix = child.prefix if not prefix: child.prefix = " " comma = False return new fix_asserts.py 0000644 00000001730 15025176000 0007445 0 ustar 00 """Fixer that replaces deprecated unittest method names.""" # Author: Ezio Melotti from ..fixer_base import BaseFix from ..fixer_util import Name NAMES = dict( assert_="assertTrue", assertEquals="assertEqual", assertNotEquals="assertNotEqual", assertAlmostEquals="assertAlmostEqual", assertNotAlmostEquals="assertNotAlmostEqual", assertRegexpMatches="assertRegex", assertRaisesRegexp="assertRaisesRegex", failUnlessEqual="assertEqual", failIfEqual="assertNotEqual", failUnlessAlmostEqual="assertAlmostEqual", failIfAlmostEqual="assertNotAlmostEqual", failUnless="assertTrue", failUnlessRaises="assertRaises", failIf="assertFalse", ) class FixAsserts(BaseFix): PATTERN = """ power< any+ trailer< '.' meth=(%s)> any* > """ % '|'.join(map(repr, NAMES)) def transform(self, node, results): name = results["meth"][0] name.replace(Name(NAMES[str(name)], prefix=name.prefix)) fix_set_literal.py 0000644 00000003241 15025176000 0010267 0 ustar 00 """ Optional fixer to transform set() calls to set literals. """ # Author: Benjamin Peterson from lib2to3 import fixer_base, pytree from lib2to3.fixer_util import token, syms class FixSetLiteral(fixer_base.BaseFix): BM_compatible = True explicit = True PATTERN = """power< 'set' trailer< '(' (atom=atom< '[' (items=listmaker< any ((',' any)* [',']) > | single=any) ']' > | atom< '(' items=testlist_gexp< any ((',' any)* [',']) > ')' > ) ')' > > """ def transform(self, node, results): single = results.get("single") if single: # Make a fake listmaker fake = pytree.Node(syms.listmaker, [single.clone()]) single.replace(fake) items = fake else: items = results["items"] # Build the contents of the literal literal = [pytree.Leaf(token.LBRACE, "{")] literal.extend(n.clone() for n in items.children) literal.append(pytree.Leaf(token.RBRACE, "}")) # Set the prefix of the right brace to that of the ')' or ']' literal[-1].prefix = items.next_sibling.prefix maker = pytree.Node(syms.dictsetmaker, literal) maker.prefix = node.prefix # If the original was a one tuple, we need to remove the extra comma. if len(maker.children) == 4: n = maker.children[2] n.remove() maker.children[-1].prefix = n.prefix # Finally, replace the set call with our shiny new literal. return maker
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