Microsoft Windows [版本 6.3.9600]

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Python 2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 32 bit (

Intel)] on win32

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>>> sorted([36, 5, 12, 9, 21], reversed_cmp)

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

NameError: name 'reversed_cmp' is not defined

>>>