Subprocess.call or Subprocess.Popen cannot use executables that are in PATH (Linux/Windows)

Question

I\'m writing a programme that needs to run on both Linux and Windows and use executables (with parameters) that exist in the path. (Assumed)

Currently I\'m having tr

Answer 1

You can control the environment variables available in the spawned subprocess by passing a mapping with the env keyword argument. E.g.

proc = subprocess.Popen(args, env={'PATH': '/some/path'})

Or to inherit PATH from the system environment variable, without necessarily chucking in everything else from the system environment:

proc = subprocess.Popen(args, env={'PATH': os.getenv('PATH')})

It might be easier/simpler just to use an absolute path, though.