Traceback (most recent call last):
   File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 33,     in vendored
__import__(vendored_name, globals(), locals(), level=0)

During handling of the above exception, another exception occurred:

   Traceback (most recent call last):
   File "/usr/bin/pip3", line 9, in <module>
   from pip import main
   File "/usr/lib/python3/dist-packages/pip/__init__.py", line 21, in   <module>
   from pip._vendor.requests.packages.urllib3.exceptions import DependencyWarning
   File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 67, in <module>
   vendored("distro")
   File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 36, in vendored
   __import__(modulename, globals(), locals(), level=0)
   File "<frozen importlib._bootstrap>", line 969, in _find_and_load
   File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
   File "<frozen importlib._bootstrap>", line 664, in _load_unlocked
   File "<frozen importlib._bootstrap>", line 634, in _load_backward_compatible
   File "/usr/share/python-wheels/distro-1.0.1-py2.py3-none-any.whl/distro.py", line 1051, in <module>
   File "/usr/share/python-wheels/distro-1.0.1-py2.py3-none-any.whl/distro.py", line 593, in __init__
   File "/usr/share/python-wheels/distro-1.0.1-py2.py3-none-any.whl/distro.py", line 846, in _get_os_release_info
   File "/usr/share/python-wheels/distro-1.0.1-py2.py3-none-any.whl/distro.py", line 877, in _parse_os_release_content
  File "/usr/lib/python3.5/shlex.py", line 263, in __next__
  token = self.get_token()
  File "/usr/lib/python3.5/shlex.py", line 90, in get_token
  raw = self.read_token()
  File "/usr/lib/python3.5/shlex.py", line 166, in read_token
  raise ValueError("No closing quotation")