traceback for magic.revert

/home/johnny/projects/merlinux/py/dist/py/test/deprecate.py:35

   def deprecated_call(func, *args, **kwargs):
       l = []
       oldwarn = py.std.warnings.warn_explicit
       def warn_explicit(*args, **kwargs): 
           l.append(args) 
           oldwarn(*args, **kwargs)
           
       py.magic.patch(py.std.warnings, 'warn_explicit', warn_explicit)
       try:
           _ = func(*args, **kwargs)
       finally:
->         py.magic.revert(py.std.warnings, 'warn_explicit')
       assert l

/home/johnny/projects/merlinux/py/dist/py/path/testing/common.py:8

   def test_get_deprecation(self):
->     py.test.deprecated_call(self.root.get, "basename")

/home/johnny/projects/merlinux/py/dist/py/test/item.py:79

   def execute(self, target, *args):
       """ default implementation for calling a test target is to
               simply call it.
           """
->     target(*args)

/home/johnny/projects/merlinux/py/dist/py/test/item.py:73

   def run(self):
       self.state.prepare(self) 
->     self.execute(self.obj, *self.args)

/home/johnny/projects/merlinux/py/dist/py/test/rsession/executor.py:22

   def execute(self):
       try:
->         self.item.run()
           outcome = Outcome()
       except py.test.Item.Skipped, e: 
           outcome = Outcome(skipped=str(e))
       except (KeyboardInterrupt, SystemExit):
           raise
       except:
           excinfo = py.code.ExceptionInfo()
           if isinstance(self.item, py.test.Function): 
               fun = self.item.obj # hope this is stable 
               code = py.code.Code(fun)
               excinfo.traceback = excinfo.traceback.cut(
                       path=code.path, firstlineno=code.firstlineno)
           outcome = Outcome(excinfo=excinfo, setupfailure=False)
           if self.usepdb:
               if self.reporter is not None:
                   self.reporter(report.ImmediateFailure(self.item,
                       ReprOutcome(outcome.make_repr())))
               import pdb
               pdb.post_mortem(excinfo._excinfo[2])
               # XXX hmm, we probably will not like to continue from that point
               # or we do?
               raise SystemExit()
       outcome.stdout = ""
       outcome.stderr = ""
       return outcome

/home/johnny/projects/merlinux/py/dist/py/test/rsession/local.py:31

   def plain_runner(item, session, reporter):
       # box executor is doing stdout/err catching for us, let's do it here
       startcapture(session)
       r = RunExecutor(item, usepdb=session.config.option.usepdb, reporter=reporter)
->     outcome = r.execute()
       outcome = ReprOutcome(outcome.make_repr())
       outcome.stdout, outcome.stderr = finishcapture(session)
       return outcome

/home/johnny/projects/merlinux/py/dist/py/test/rsession/local.py:47

   def apigen_runner(item, session, reporter):
       r = RunExecutor(item, reporter=reporter)
       session.tracer.start_tracing()
->     retval = plain_runner(item, session, reporter)
       session.tracer.end_tracing()
       return retval