Traceback (most recent call last):


 "<string>", line 9, in <module>


 "/usr/lib/python3.6/site-packages/powerline/__init__.py", line 10, in <module>

from powerline.colorscheme import Colorscheme


 "/usr/lib/python3.6/site-packages/powerline/colorscheme.py", line 6, in <module>

from powerline.lib.unicode import unicode


 "/usr/lib/python3.6/site-packages/powerline/lib/unicode.py", line 7, in <module>

from unicodedata import east_asian_width, combining
ImportError: /usr/lib/python3.6/lib-dynload/unicodedata.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _PyUnicode_Ready

Traceback (most recent call last):


 "/opt/eff.org/certbot/venv/bin/letsencrypt", line 7, in <module>

from certbot.main import main


 "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/main.py", line 3, in <module>

from __future__ import print_function
ImportError: No module named __future__
