Python 按键错误和 for 循环中的重复代码

我收到一条错误消息 回溯（最近一次调用最后一次）： 文件“/Users/user/PycharmProjects/SSW-540/P8-hajayi.py”，第 34 行，位于 字母计数[ch] += 1 关键错误：'\n'

我还注意到打印语句正在重复，我认为这可能是因为它们位于 for 循环中。我不想让他们重蹈覆辙。

此外，“from operator import itemgetter”和“import Operator”中的 from 和 import 不会像第一次导入那样发出蓝色光。是因为我使用的python版本吗？我使用 python 3.6

from string import punctuation

from operator import itemgetter

import operator

fileName = input('Enter the file name')

file = open(fileName, 'r')

punc_translator = str.maketrans({key: None for key in punctuation})

documentFile = str(file.read()).translate(punc_translator).lower()

print(documentFile)

alphabetCount = {

"a": 0, "b": 0, "c": 0, "d": 0, "e": 0, "f": 0, "g": 0, "h": 0, "i": 0, "j": 0, "k": 0, "l": 0,

"m": 0, "n": 0, "o": 0, "p": 0, "q": 0, "r": 0, "s": 0, "t": 0, "u": 0, "v": 0, "w": 0, "x": 0,

"y": 0, "z": 0

}

totalWords = 0

totalDistinctWords = 0

  for ch in documentFile:
      if ch != ' ':
      alphabetCount[ch] += 1
      allWords = documentFile.split(' ')
      wordsCountDict = dict()
      for word in allWords:
         totalWords += 1
         if word in wordsCountDict.keys():
             wordsCountDict[word] += 1
         else:
             wordsCountDict[word] = 1
             totalDistinctWords += 1

     print(totalWords)
     print(totalDistinctWords)

     sortedWordsCount = sorted(wordsCountDict.items(), key=operator.itemgetter(1), reverse=True)

     sortedCharactersCount = sorted(alphabetCount.items(), key=operator.itemgetter(1),reverse=True)

     print('The summary of document: ')

     print("Total words is: " + str(totalWords))

     print(totalDistinctWords)

     print('Most Frequent Characters:')

     print(sortedCharactersCount)

     print('Most Frequent Words:')

     print(sortedWordsCount)