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      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