pip install

pip install

根本原因是：您的环境变量

LC_ALL

丢失或无效

简短答案-

只需运行以下命令：

$ export LC_ALL=C

如果在新的终端窗口中仍然出现错误，请在

.bashrc

文件底部添加错误。

长答案-

这是我的

locale

设置：

$ localeLANG=en_US.UTF-8LANGUAGE=LC_CTYPE="C"LC_NUMERIC="C"LC_TIME="C"LC_COLLATE="C"LC_MonETARY="C"LC_MESSAGES="C"LC_PAPER="C"LC_NAME="C"LC_ADDRESS="C"LC_TELEPHONE="C"LC_MEASUREMENT="C"LC_IDENTIFICATION="C"LC_ALL=C

Python2.7

    $ uname -a    Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u6 (2015-11-09) x86_64 GNU/Linux    $ python --version    Python 2.7.9    $ pip --version    pip 8.1.1 from /usr/local/lib/python2.7/dist-packages (python 2.7)    $ unset LC_ALL    $ pip install virtualenv    Traceback (most recent call last):      File "/usr/local/bin/pip", line 11, in <module>        sys.exit(main())      File "/usr/local/lib/python2.7/dist-packages/pip/__init__.py", line 215, in main        locale.setlocale(locale.LC_ALL, '')      File "/usr/lib/python2.7/locale.py", line 579, in setlocale        return _setlocale(category, locale)    locale.Error: unsupported locale setting    $ export LC_ALL=C    $ pip install virtualenv    Requirement already satisfied (use --upgrade to upgrade): virtualenv in /usr/local/lib/python2.7/dist-packages