[問題解決]Python locale error: unsupported locale setting

原文來源：https://stackoverflow.com/questions/14547631/python-locale-error-unsupported-locale-setting

安裝flask包的時候，不支持語言環境，報錯如下：

Traceback (most recent call last):
  File "/usr/bin/pip3", line 11, in <module>
    sys.exit(main())
  File "/usr/lib/python3/dist-packages/pip/__init__.py", line 215, in main
    locale.setlocale(locale.LC_ALL, '')
  File "/usr/lib/python3.5/locale.py", line 594, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting

解決方法：
依次執行一下命令:

export LC_ALL="en_US.UTF-8"
export LC_CTYPE="en_US.UTF-8"
sudo dpkg-reconfigure locales 選擇en_US.UTF-8