call site 14 for path.local.sysfind
path/local/testing/test_local.py - line 227
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   def test_sysfind_multiple(self):
       dir = py.test.ensuretemp('sysfind') 
       env = py.std.os.environ
       oldpath = env['PATH']
       try:
           env['PATH'] += ":%s:%s" % (dir.ensure('a'),
                                      dir.join('b'))
           dir.ensure('b', 'a')
           checker = lambda x: x.dirpath().basename == 'b'
->         x = py.path.local.sysfind('a', checker=checker)
           assert x.basename == 'a'
           assert x.dirpath().basename == 'b'
           checker = lambda x: None
           assert py.path.local.sysfind('a', checker=checker) is None
       finally:
           env['PATH'] = oldpath