Collecting httplib2
  Downloading httplib2-0.18.0.tar.gz (257 kB)
     |████████████████████████████████| 257 kB 8.4 MB/s 
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  ERROR: Command errored out with exit status 1:
   command: /var/www/.virtualenvs/courtlistener/bin/python /var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpUiA7Ve
       cwd: /tmp/pip-install-Ry2SoI/httplib2
  Complete output (10 lines):
  Traceback (most recent call last):
    File "/var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module>
      main()
    File "/var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 108, in get_requires_for_build_wheel
      backend = _build_backend()
    File "/var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 99, in _build_backend
      obj = getattr(obj, path_part)
  AttributeError: 'module' object has no attribute '__legacy__'
  ----------------------------------------
ERROR: Command errored out with exit status 1: /var/www/.virtualenvs/courtlistener/bin/python /var/www/.virtualenvs/courtlistener/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpUiA7Ve Check the logs for full command output.