Fedora is depreciating python2. Thankfully it's still included in Fedora 31, but the default is python3. So, when starting chirpw on Fedora 31, the software just asks for "python" which defaults to python3 and it fails. To get around this, use your favorite text editor and edit the first line in chirpw. Change 'python' in the first line to python2 and save. It should now work. See images for details. NOTE: Fedora 32, which is due out within the year, will not include python2 and well, yea.