assignment-2a.py

#!/usr/bin/env python
import random
from letters import file2prob
import sys


file = sys.argv[1]
letters_and_probs = file2prob(file)
support = 'abcdefghijklmnopqrstuvwxyz '
probs = letters_and_probs.values()
letter = random.choices(support,probs)
print(letter[0])