pip install – locale.Error: unsupported locale setting

pip install – locale.Error: unsupported locale setting

Full stacktrace:
➜ ~ pip install virtualenv
Traceback (most recent call last):
File “/usr/bin/pip”, line 11, in
sys.exit(main())
File “/usr/lib/python3.4/site-packages/pip/__init__.py”, line 215, in main
locale.setlocale(locale.LC_ALL, ”)
File “/usr/lib64/python3.4/locale.py”, line 592, in setlocale
return
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