Python-统计列表字符串中的字数

Question

我想在一个字符串列表中找到整个单词的数目，这是列表

mylist = ["Mahon Point retail park", "Finglas","Blackpool Mahon", "mahon point  blanchardstown"] 

预期结果：

4
1
2
3

mylist[0]中有4个单词，mylist[1]中有1个单词，依此类推

for x, word in enumerate(mylist):
    for i, subwords in enumerate(word):
        print i

完全不起作用。。。。

你们觉得呢？

Answer 1

最简单的方法应该是

num_words = [len(sentence.split()) for sentence in mylist]

Answer 2

使用str.split：

>>> mylist = ["Mahon Point retail park", "Finglas","Blackpool Mahon", "mahon point  blanchardstown"] 
>>> for item in mylist:
...     print len(item.split())
...     
4
1
2
3

Answer 3

您可以使用NLTK：

import nltk
mylist = ["Mahon Point retail park", "Finglas","Blackpool Mahon", "mahon point  blanchardstown"]
print(map(len, map(nltk.word_tokenize, mylist)))

输出：

[4, 1, 2, 3]