```chris@debian:~$ pip install ~/dev/qtpyvcp-master
Processing ./dev/qtpyvcp-master
gCollecting docopt (from qtpyvcp==0.0.1)
ot it working but it was  Downloading https://files.pythonhosted.org/packages/a2/55/8f8cab2afd404cf578136ef2cc5dfb50baa1761b68c9da1fb1e4eed343c9/docopt-0.6.2.tar.gz
 nCollecting psutil (from qtpyvcp==0.0.1)
ot wo  Downloading https://files.pythonhosted.org/packages/e3/58/0eae6e4466e5abf779d7e2b71fac7fba5f59e00ea36ddb3ed690419ccb0f/psutil-5.4.8.tar.gz (422kB)
    100% |████████████████████████████████| 430kB 966kB/s 
ing vCollecting pyudev (from qtpyvcp==0.0.1)
er  Downloading https://files.pythonhosted.org/packages/bc/a2/31a07829acea8e70a28c247f43fa5d981229ae0f9edfeddedf52de00709b/pyudev-0.21.0.tar.gz (89kB)
    100% |████████████████████████████████| 92kB 1.4MB/s 
 Collecting qtpy (from qtpyvcp==0.0.1)
  Downloading https://files.pythonhosted.org/packages/8e/dd/eef9ac8a6b30cb38fedd1187848d9f3e39b02e5c29e684130c85f314cea6/QtPy-1.5.2-py2.py3-none-any.whl (42kB)
    100% |████████████████████████████████| 51kB 2.8MB/s 
Collecting six (from pyudev->qtpyvcp==0.0.1)
  Downloading https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Building wheels for collected packages: qtpyvcp, docopt, psutil, pyudev
  Running setup.py bdist_wheel for qtpyvcp ... done
  Stored in directory: /home/chris/.cache/pip/wheels/89/37/cc/a64646bf361484ef66fa7318b72dadf366348ac20c1e8f726a
  Running setup.py bdist_wheel for docopt ... done
  Stored in directory: /home/chris/.cache/pip/wheels/9b/04/dd/7daf4150b6d9b12949298737de9431a324d4b797ffd63f526e
  Running setup.py bdist_wheel for psutil ... done
  Stored in directory: /home/chris/.cache/pip/wheels/d2/71/40/9c6993129f8cda369d0f21c46a13a6adab7fb1664fe6512551
  Running setup.py bdist_wheel for pyudev ... done
  Stored in directory: /home/chris/.cache/pip/wheels/4b/4c/89/0ac8da441c95da916b458bd62ab79ccd4ecdfa27d01d837bdd
Successfully built qtpyvcp docopt psutil pyudev
Installing collected packages: docopt, psutil, six, pyudev, qtpy, qtpyvcp
Invalid script entry point: <ExportEntry brender = examples.brender.__main__:None []> for req: qtpyvcp==0.0.1 - A callable suffix is required. Cf https://packaging.python.org/en/latest/distributing.html#console-scripts for more information.
chris@debian:~$ 
```