python 统计一个目录中每个txt文件最重要的的词

Python 练习册，每天一个小程序

import collections
import os.path
def judgeit(words):
for i in range(6):
if len(words[i]) > 2 and words[i] != 'the' and words[i] != 'her' and words[i] !=  'his' and words[i] != 'and' and words[i] != 'she':
return  words[i]
return words[7]

def mainKeywords(dirPath):
f_list = os.listdir(dirPath)
for i in f_list:
if os.path.splitext(i)[1] == '.txt':
print('the keywords of' + i + ' is:' )
with open(i, 'r') as fp:
str1 = fp.read().split(' ')
b = collections.Counter(str1)
keywords = sorted(b, key=lambda x: b[x],reverse = True)
print(judgeit(keywords))

mainKeywords('D:\PyCharm 2017.1.3\projects')</pre><br>