wordsnack.py

#!/usr/bin/python

import sys
import subprocess
from collections import Counter

chars = sys.argv[1]
length = len(chars) if len(sys.argv) == 2 else int(sys.argv[2])
if length > len(chars): length = len(chars)

chars = Counter(chars)

for line in subprocess.check_output('aspell -d en dump master | aspell -l en expand', shell=True).split('\n'):
  if len(line) != length: continue
  if (len(list((Counter(line) - chars).elements()))) != 0: continue
  print(line)