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Text File  |  2014-07-29  |  690b  |  26 lines
  1. """Fix "for x in f.xreadlines()" -> "for x in f".
  2.  
  3. This fixer will also convert g(f.xreadlines) into g(f.__iter__)."""
  4. # Author: Collin Winter
  5.  
  6. # Local imports
  7. from .. import fixer_base
  8. from ..fixer_util import Name
  9.  
  10.  
  11. class FixXreadlines(fixer_base.BaseFix):
  12.     BM_compatible = True
  13.     PATTERN = """
  14.     power< call=any+ trailer< '.' 'xreadlines' > trailer< '(' ')' > >
  15.     |
  16.     power< any+ trailer< '.' no_call='xreadlines' > >
  17.     """
  18.  
  19.     def transform(self, node, results):
  20.         no_call = results.get("no_call")
  21.  
  22.         if no_call:
  23.             no_call.replace(Name(u"__iter__", prefix=no_call.prefix))
  24.         else:
  25.             node.replace([x.clone() for x in results["call"]])
  26.