python 统计文件中单词出现的频率

import sys import re

WORD_RE = re.compile('\w+')

index = {} with open(sys.argv[1], encoding='utf-8') as fp: for line_no, line in enumerate(fp, 1): for match in WORD_RE.finditer(line): word = match.group() column_no = match.start()+1 location = (line_no, column_no) # this is ugly; coded like this to make a point occurrences = index.get(word, []) # <1> occurrences.append(location) # <2> index[word] = occurrences # <3>

print in alphabetical order

for word in sorted(index, key=str.upper): # <4> print(word, index[word])

END INDEX0