OS X上的Python 2.7（Sierra 10.12.5）：TypeError：'frozenset＆＃39;对象不可调用

Question

Python 2.7.12（v2.7.12）

>>> import hashlib
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "build/bdist.macosx-10.12-intel/egg/hashlib.py", line 115, in <module>
        """
    TypeError: 'frozenset' object is not callable
    >>> 

如何解决此问题？