call site 10 for path.local.mksymlinkto
path/local/testing/test_posix.py - line 76
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   def test_symlink_remove(self):
       tmpdir = self.tmpdir.realpath() 
       linkpath = tmpdir.join('test')
->     linkpath.mksymlinkto(linkpath) # point to itself
       assert linkpath.check(link=1)
       linkpath.remove()
       assert not linkpath.check()