call site 12 for path.local.sysfind
path/local/testing/test_local.py - line 214
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   def test_sysfind_absolute(self):
       x = py.path.local.sysfind('test')
       assert x.check(file=1)
->     y = py.path.local.sysfind(str(x)) 
       assert y.check(file=1) 
       assert y == x