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Viewing changes to Lib/lib2to3/fixes/fix_input.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_input.py
 
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"""Fixer that changes input(...) into eval(input(...))."""
 
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# Author: Andre Roberge
 
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# Local imports
 
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from .. import fixer_base
 
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from ..fixer_util import Call, Name
 
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from .. import patcomp
 
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context = patcomp.compile_pattern("power< 'eval' trailer< '(' any ')' > >")
 
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class FixInput(fixer_base.BaseFix):
 
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    BM_compatible = True
 
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    PATTERN = """
 
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              power< 'input' args=trailer< '(' [any] ')' > >
 
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              """
 
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    def transform(self, node, results):
 
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        # If we're already wrapped in a eval() call, we're done.
 
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        if context.match(node.parent.parent):
 
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            return
 
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        new = node.clone()
 
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        new.prefix = ""
 
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        return Call(Name("eval"), [new], prefix=node.prefix)