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  • Committer: Robert Collins
  • Date: 2010-06-26 01:07:16 UTC
  • mto: This revision was merged to the branch mainline in revision 5324.
  • Revision ID: robertc@robertcollins.net-20100626010716-jowzrldm4ntsaki2
Make bzrlib startup use a trace context manager.

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bzrlib/tests/fixtures.py
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    else:
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        e = [n for (n, u) in interesting_encodings]
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    return itertools.cycle(iter(e))
 
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class RecordingContextManager(object):
 
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    """A context manager that records."""
 
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    def __init__(self):
 
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        self._calls = []
 
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    def __enter__(self):
 
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        self._calls.append('__enter__')
 
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        return self # This is bound to the 'as' clause in a with statement.
 
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    def __exit__(self, exc_type, exc_val, exc_tb):
 
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        self._calls.append('__exit__')
 
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        return False # propogate exceptions.