python-2.7 - Remove fullstop, commas, quotation from list in Python

Question

I have a python code for word frequency count from a text file. The problem with the program is that it takes fullstop into account hence altering the count. For counting word i've used a sorted list of words. I tried to remove the fullstop using

 words = open(f, 'r').read().lower().split()  
 uniqueword = sorted(set(words))
 uniqueword = uniqueword.replace(".","") 

but i get error as

AttributeError: 'list' object has no attribute 'replace'

Any help would be appreciated :)

Answer 1

您可以set使用列表推导在制作 之前处理单词：

words = [word.replace(".", "") for word in words]

您也可以在 ( uniquewords = [word.replace...]) 之后删除它们，但随后您将重新引入重复项。

请注意，如果您想计算这些单词，aCounter可能更有用：

from collections import Counter

counts = Counter(words)

Answer 2

你可能会更好

words = re.findall(r'\w+', open(f, 'r').read().lower())

它将抓取由一个或多个“单词字符”组成的所有字符串，并将忽略标点符号和空格。