call site 7 for log.get
log/testing/test_logger.py - line 8
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   def test_logger_identity():
       assert py.log.get() is py.log.get() 
       otherkey = object()
       for key in "name1", object():
->         log = py.log.get(key)
           assert py.log.get(key) is log 
           assert py.log.get(otherkey) is not log