fix_reduce.py
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# 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)
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