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Viewing changes to Lib/lib2to3/fixes/fix_nonzero.py

  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2013-11-25 09:44:27 UTC
  • Revision ID: package-import@ubuntu.com-20131125094427-lzxj8ap5w01lmo7f
Tags: upstream-3.4~b1
Import upstream version 3.4~b1

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Lib/lib2to3/fixes/fix_nonzero.py
 
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"""Fixer for __nonzero__ -> __bool__ methods."""
 
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# Author: Collin Winter
 
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# Local imports
 
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from .. import fixer_base
 
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from ..fixer_util import Name, syms
 
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class FixNonzero(fixer_base.BaseFix):
 
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    BM_compatible = True
 
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    PATTERN = """
 
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    classdef< 'class' any+ ':'
 
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              suite< any*
 
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                     funcdef< 'def' name='__nonzero__'
 
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                              parameters< '(' NAME ')' > any+ >
 
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                     any* > >
 
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    """
 
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    def transform(self, node, results):
 
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        name = results["name"]
 
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        new = Name("__bool__", prefix=name.prefix)
 
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        name.replace(new)