不需要在python中计算空字符串（重复）

问题描述

该程序的目的是计算段落中的每个单词并记录频率。 不幸的是，该程序还在计算空字符串。 我的代码是：

def build_map( in_file, word_map ):
# Receives an input file and an empty dictionary


    for line in in_file:

    # Splits each line at blank space and turns it into
    # a list.
        word_list = line.split()



        for word in word_list: 
            word= word.strip().strip(string.punctuation).lower()#program revised           
            if word!='':

            # Within the word_list, we are stripping empty space
            # on both sides of each word and also stripping any
            # punctuation on both side of each word in the list.
            # Then, it turns each word to the lower case to avoid
            # counting 'THE' and 'the' as two different words.

                add_word( word_map, word)

我真的很感激，如果有人可以看看代码并解释，为什么它仍在计算空字符串。 除此之外，其他一切工作正常。 谢谢（修改了代码，现在工作正常）。