Find all words matching the NY Times Spelling Bee letters

spelling_bee_nyt.py

# words4.txt is a wordlist of 4 letter or longer words
# usage: spelling_bee_nyt.py A BCDEFG
# where A is the required letter

#!/usr/bin/python3

import sys

magic_letter = sys.argv[1]
other_letters = sys.argv[2]
words_with_magic = 0


def fullword(letters, word):
  return "".join(set(letters.lower())) == "".join(set(word.lower()))

def checkword(letters, word):
  for l in word.lower():
    if l not in letters.lower():
      return False
  return True

with open('words4.txt', 'r') as lines:
  for liner in lines:
    good = True
    line = liner.strip()
    if magic_letter.lower() not in line:
      continue
    if fullword(other_letters + magic_letter, line):
      print("XXX", line)
    elif checkword(other_letters + magic_letter, line):
      print(line)