fo = open("1.txt", "r", encoding='utf-8') read = fo.read() fo.close() read = read.strip().lower() for i in '''.,?;:''':     read = read.replace(i, ' ') readList = read.split() readSet = set(readList) bug = {'i', 'my', 'but', 'and', 'you', 'the', 'if', 'on', 'are'} readSet = readSet - bug dic = {} for word in readSet:     dic[word] = readList.count(word) li = list(dic.items()) li.sort(key=lambda x: x[1], reverse=True) for i in range(20):     print(li[i])