Exception ignored in: <_io.TextI

C:\Users\xxxxx>python -m pip install --upgrade pip

Collecting pip

  Downloading https://files.pythonhosted.org/packages/d8/f3/413bab4ff08e1fc4828dfc59996d721917df8e8583ea85385d51125dceff/pip-19.0.3-py2.py3-none-any.whl (1.4MB)

Could not install packages due to an EnvironmentError: [WinError 87] The parameter is incorrect

You are using pip version 19.0.2, however version 19.0.3 is available.

You should consider upgrading via the 'python -m pip install --upgrade pip' command.

Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>

OSError: [WinError 87] The parameter is incorrect

升级pip的时候一直提示这个错误信息。如何解决呢？

需要修改系统语言 

Control Panel -> Language & Region -> Administrative -> Change system locale..

change the current system locale as Chinese(Simplified， PRC)

Restart!