root@ip-172-31-26-166:/var/lib/juju/agents/unit-docker-3/charm# pip3 install -U --no-index -f wheelhouse pip | pastebinit
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 595, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting