Pigeon Planner doesn't work with Python 3.8

[Stefan Rebacz]

Hello,

I updated my Neon distribution that bases on Ubuntu 20.04 LTS. The update also upgrade python to version 3.8.2. After launching pigeonplanner.py I received error that platform.linux_distribution() is missing. According to the documentation this function was deprecated in Python3.5 and removed in Python3.8.

The easiest way to fix that problem is to modify main.py (works like a charm):
    elif operatingsystem == "Linux":
        # distname, version, nick = platform.linux_distribution()
        # distribution = "%s %s" % (distname, version)
        distribution = ""

However, the final fix should be more solid and as suggested in documentation distro package should be used instead.

Sincerely,
Stefan

[Timo Vanwynsberghe (timovwb)]

Hey Stefan, thanks for reporting. The Windows and macOS builds are on Python 3.8, but they of course skip this part. I'm developing on Ubuntu 18.04/Python 3.6 so this slipped by.

This information is just nice to know when receiving an error report, but by no means necessary. Not really worth it to add a new dependency for this. I'll replace it by a call to `lsb_release -ds` which should do the trick.