[plotter] add a --mockup option to the demo main function default tip

[plotter] use OSError instead of more specific SerialException

[test] kill old useless test

[test] add a conftest.py file with fixtures for prologix emulator setup in tests

[prologix] small fix in the prologix emulator

[plotter] flake8

(0) -100 -30 -10 -6 tip

mercurial