女儿在做英语练习题, 有一种类型叫做字母组合, 就是将打乱顺序的字母组合成学过的单词, 女儿常常想不出来, 我也经常搔头, 顺序是乱的, 查字典也不好使.

wget https://github.com/dwyl/english-words/blob/master/words_alpha.txt

$ head words_alpha.txt
a
aa
aaa
aah
aahed
aahing
aahs
aal
aalii
aaliis
...

# vi words_compose.py
import sys
from itertools import permutations 

words = []
with open('./words_alpha.txt') as file:
    for line in file: 
        line = line.strip() 
        words.add(line)

inputstr = 'hoiystr'
if(len(sys.argv)>1):
    inputstr = sys.argv[1].lower()

perms = permutations(inputstr)
for p in perms:
    word = ''.join(p)
    if word in words:
        print(word)

$ python words_compose.py ipturec
picture
cuprite

$ python words_compose.py oihystr
history
toryish