关于macos：Python：非常简单的strptime()调用抛出错误

Python: Very simple strptime() call throws error

一些非常简单的代码会导致一个神秘的错误，Google没有给我任何帮助......

码：

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import sys
import datetime

for line in sys.stdin:
date = datetime.datetime.strptime(line, '%Y%m%dT%H%M%S')
print date

stdin上的前几个输入行：

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20101119T141500
20101119T164500
20110310T081500
20110310T113000
20100218T113000
...

错误：

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Traceback (most recent call last):
File"time.py", line 5, in <module>
date = datetime.datetime.strptime(line, '%Y%m%dT%H%M%S')
File"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_strptime.py", line 13, in <module>
import time
File"<path>", line 5, in <module>
date = datetime.datetime.strptime(line, '%Y%m%dT%H%M%S')
AttributeError: _strptime

平台：Mac OS X 10.7.3，Python 2.7.1