Exception:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 209, in main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 335, in ru                                                                                                                                                                                                                                             n
    prefix=options.prefix_path,
  File "/usr/lib/python3/dist-packages/pip/req/req_set.py", line 732, in install
    **kwargs
  File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 837, in ins                                                                                                                                                                                                                                             tall
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 1039, in mo                                                                                                                                                                                                                                             ve_wheel_files
    isolated=self.isolated,
  File "/usr/lib/python3/dist-packages/pip/wheel.py", line 247, in move_wheel_fi                                                                                                                                                                                                                                             les
    prefix=prefix,
  File "/usr/lib/python3/dist-packages/pip/locations.py", line 153, in distutils                                                                                                                                                                                                                                             _scheme
    i.finalize_options()
  File "/usr/share/python-wheels/setuptools-20.7.0-py2.py3-none-any.whl/setuptoo                                                                                                                                                                                                                                             ls/command/install.py", line 38, in finalize_options
    orig.install.finalize_options(self)
  File "/usr/lib/python3.5/distutils/command/install.py", line 273, in finalize_                                                                                                                                                                                                                                             options
    raise DistutilsOptionError("can't combine user with prefix, "
distutils.errors.DistutilsOptionError: can't combine user with prefix, exec_pref                                                                                                                                                                                                                                             ix/home, or install_(plat)base
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

An error occurred and the requirements setup might not be completed. Consult the                                                                                                                                                                                                                                              docs.

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