Building wheels for collected packages: control
  Building wheel for control (setup.py): started
  Building wheel for control (setup.py): finished with status 'done'
  Created wheel for control: filename=control-dev-py2.py3-none-any.whl size=407614 sha256=a2bfcb8edd57c305b7344d9439136a84cb7359f15c160a8d2ea616e9d407a0ab
  Stored in directory: /home/runner/.cache/pip/wheels/77/fe/0b/1b2[19](https://github.com/bnavigator/python-control/runs/7704032738?check_suite_focus=true#step:4:20)0b1f4a6d7e4e1d478b5e5853711a34954751fabd90c43
  WARNING: Built wheel for control is invalid: Metadata 1.2 mandates PEP 440 version, but 'dev' is not
Failed to build control
Installing collected packages: control
  Running setup.py install for control: started
  Running setup.py install for control: finished with status 'done'
  DEPRECATION: control was installed using the legacy 'setup.py install' method, because a wheel could not be built for it. A possible replacement is to fix the wheel build issue reported above. Discussion can be found at https://github.com/pypa/pip/issues/8368
Successfully installed control-dev