在Windows上，用Python导入pick模块会出现以下错误：

ModuleNotFoundError: No module named ‘_curses’

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>>> from pick import pick
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "I:\PYTHON~1\lib\site-packages\pick\__init__.py", line 3, in <module>
    import curses
  File "I:\PYTHON~1\lib\curses\__init__.py", line 13, in <module>
    from _curses import *
ModuleNotFoundError: No module named '_curses'
>>> from pick import pick
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "I:\PYTHON~1\lib\site-packages\pick\__init__.py", line 3, in <module>
    import curses
  File "I:\PYTHON~1\lib\curses\__init__.py", line 13, in <module>
    from _curses import *
ModuleNotFoundError: No module named '_curses'

原因就是 curses 这个模块不支持Windows：

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D:\Users\tracis>pip install curses
Collecting curses
  Could not find a version that satisfies the requirement curses (from versions: )
No matching distribution found for curses

在pick的安装描述中有一个提醒，说到了这个问题，但是自己开始的时候没注意到。

Note for Windows: curses wheels can be obtained from http://www.lfd.uci.edu/~gohlke/pythonlibs/#curses, then install it with pip, for example: pip install curses-2.2-cp27-none-win_amd64.whl

在 https://www.lfd.uci.edu/~gohlke/pythonlibs/#curses 网站下载第三方的wheels 安装包，用 pip 安装即可。

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