eliminate subprocess call

[dmig]

This

howdy/src/cli.py

Line 13 in 961342a

user = subprocess.check_output("echo $(logname 2>/dev/null || echo $SUDO_USER)", shell=True).decode("ascii").strip()

Can be replaced with

try:
  user = os.getlogin()
except:
  user = os.environ.get('SUDO_USER')

[boltgolt]

If i recall correctly i tried a load of different solutions for this and my line was the only one that worked in su. I'll give yours a spin though, it's much easier to maintain.