Python之words count

要求：

对文件单词进行统计，不区分大小写，并显示单词重复最多的十个单词

思路：

利用字典key，value的特性存单词及其重复的次数

每行进行特殊字符的处理，分离出被特殊字符包含的单词

def makekey(s:str)->list:
    lst = []
    s_complex = set(r"""!`#.,-*()\/[]*""")  #利用集合装置特殊字符，前缀r不用转义
    for word_i in s:
        if word_i in s_complex:
            lst.append(" ")
        else:
            lst.append(word_i)
        new_string = "".join(lst).split()
    return new_string

src = '/tmp/sample.txt'
dic = {}
with open(src,'r') as f:
#     f.readlines()
    for line in f:
        words_list=line.lower().split()
        for word in words_list: #str in list
            word = makekey(word)  #return list
            for words in word:
                if words in dic.keys():
                    dic[words]+=1
                else:
                    dic[words] = 1
reverse_dict = sorted(dic.items(),key=lambda x:x[1],reverse=True)
print(reverse_dict[:10])