gentoo menu in python (qe) quickemerge script

qe.py

#!/usr/bin/env python3
 
import subprocess

# save the script to /usr/local/bin/qe.py
 
def my_cmd(thecommand):
return_code = subprocess.call(thecommand, shell=True)
def my_quit_fn():
raise SystemExit
 
 
def invalid():
print("Wrong key. Please try again.")
 
menu = {"1":("sync package list: ","eix-sync"),
"2":("clean: ","emerge --depclean && eclean distfiles"),
"3":("update:","emerge --update --newuse --keep-going @world"),
"4":("show logs:","elogv"),
"5":("read news:","eselect news read new"),
"q":("Quit ","echo bye!")
}
for key in sorted(menu.keys()):
print(key+": " + menu[key][0] + menu[key][1])
 
ans = input("please select: ")
 
my_cmd(menu.get(ans,[None,invalid])[1])