Developers' Forum

Those commands work for me, so it sounds like your Ubuntu 18.04 is configured differently, somehow. So ... some experimenting is called for. Some things to try:

• The pylint install should have created a file /usr/local/bin/pylint containing the following code:
  

  
  #!/usr/local/bin/python3.9
  # -*- coding: utf-8 -*-
  import re
  import sys
  from pylint import run_pylint
  if __name__ == '__main__':
      sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
      sys.exit(run_pylint())
  

  If that's there then it seems your PATH environment variable isn't set to include /usr/local/bin. You could either fix the PATH to include it or symlink to that script from somewhere that is on the PATH. If instead that script isn't there you could create it.
• apt install pylint may work, but the problem that used to occur with that is that when you ran the pylint command you got python2 checking, not python3. So try it and then try checking some python2 code, e.g. print "Hi" and make sure it gets rejected. If not, uninstall and continue.
• apt install pylint3 used to work, but that gave you a command pylint3 not a command pylint. If that works, you could symlink pylint to pylint3.
• Your current install of pylint can be run with a command like
  
  

  python3 -m pylint  argument1 argument2 ...

  so you could if you wanted run the pylintrc install command that way. But the command pylint won't work in that case and you'll have to change any use of raw pylint commands in the tester and question types to python3 - m pylint