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36 lines
837 B
36 lines
837 B
# Copyright 2008 Armin Ronacher.
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# Licensed to PSF under a Contributor Agreement.
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"""Fixer for reduce().
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Makes sure reduce() is imported from the functools module if reduce is
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used in that module.
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"""
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from lib2to3 import fixer_base
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from lib2to3.fixer_util import touch_import
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class FixReduce(fixer_base.BaseFix):
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BM_compatible = True
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order = "pre"
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PATTERN = """
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power< 'reduce'
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trailer< '('
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arglist< (
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(not(argument<any '=' any>) any ','
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not(argument<any '=' any>) any) |
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(not(argument<any '=' any>) any ','
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not(argument<any '=' any>) any ','
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not(argument<any '=' any>) any)
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) >
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')' >
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>
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"""
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def transform(self, node, results):
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touch_import('functools', 'reduce', node)
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