python - Can sys.argv handle optional arguments?

Question

from sys import argv
script, lira_cbt, [eur_hedge] = argv

if eur_hedge == None:
    #Do x
else:
    #Do y

I want it to be able to run with just lira_cbt as an argument (doing x), or with both lira_cbt and eur_hedge (doing y). Can this be achieved with sys.argv?

Answer 1

Just use the length of sys.argv

if len(sys.argv) == 2:
  # do X
else:
  # do Y