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: /usr/lib/python3.5/lib2to3/fixes/ [ drwxr-xr-x ]
name : fix_callable.py # Copyright 2007 Google, Inc. All Rights Reserved. # Licensed to PSF under a Contributor Agreement. """Fixer for callable(). This converts callable(obj) into isinstance(obj, collections.Callable), adding a collections import if needed.""" # Local imports from lib2to3 import fixer_base from lib2to3.fixer_util import Call, Name, String, Attr, touch_import class FixCallable(fixer_base.BaseFix): BM_compatible = True order = "pre" # Ignore callable(*args) or use of keywords. # Either could be a hint that the builtin callable() is not being used. PATTERN = """ power< 'callable' trailer< lpar='(' ( not(arglist | argument<any '=' any>) func=any | func=arglist<(not argument<any '=' any>) any ','> ) rpar=')' > after=any* > """ def transform(self, node, results): func = results['func'] touch_import(None, 'collections', node=node) args = [func.clone(), String(', ')] args.extend(Attr(Name('collections'), Name('Callable'))) return Call(Name('isinstance'), args, prefix=node.prefix)