App doesn't connect to device on Mac #684

• I'm submitting a ...

  • bug report

• What is the current status?

Opening the app via normal means will not connect to the device.

• If the current behavior is a bug, please provide the steps to reproduce it

From Gitter - @chiefenne

I installed the desktop app which runs fine. I also installed the Python library. When I connect PSLab via a USB cable and then start the desktop app, it says "no device connected". I validated the correct installation of the Python library with the script given in the docs (psl.multimeter.measure_capacitance() ...). This worked fine. But the device does still not show up in the desktop app.

Current workaround - @chrvoigt

start it from the command line $ open /Applications/PSLab-Desktop.app .. just make sure to connect the device first

• What is the expected behavior?
  Connection works without needing this workaround.

• Please tell us about your environment:

  • OS with version number: [ Windows / OSX / Linux Distro ]
    Mojave 10.14.6

• Other information ( Any research that you may have done which you think is the cause of problem )
  This is likely because Mac handles command line and GUI apps differently. Environmental variables might be set in one and not set in the other depending on how python is installed.

• Would you like to work on it?
  I don't have a Mac so it will be hard for me to reproduce.