pydoc命令无效
环境变量已经添加了

C:\Python27\Lib;C:\Python27\Tools\Scripts;C:\Python27;

但是命令行下面输入pydoc提示

C:\>pydoc
'pydoc' is not recognized as an internal or external command,
operable program or batch file.


这是什么原因呢？

[解决办法]

Python code

python -m pydoc