Python 拼写检查及建议

Question

我正在做一个程序，这个程序会接收一个输入，然后检查这个输入是否在一个文件里的字典中拼写正确。不过，我还想给出一两个建议，告诉用户他们可能想表达的意思。有没有什么建议可以实现这个功能？我找到了一些模块可以做到这一点，但它们并不是针对特定文件里的字典。任何帮助都非常感谢！！

这是我现在的代码：

def getDictionary():
  theDictionary = open("theDictionary.txt", "r")
  dictionaryList = []
  for eachLine in theDictionary:
    splitLines = eachLine.split()
    dictionaryList.append(splitLines[0])
  theDictionary.close()
  return dictionaryList

def spellChecker(theFile, theDictionary):
  lowerItems = theFile.lower()
  wordList = lowerItems.split()
  wrongList = []
  for item in wordList:
    if item not in theDictionary:
        result = False
        wrongList.append(item)

    else:
        result = True
        wrongItem = ""
  return (result, wrongList)

def main():
  theDictionary = getDictionary()
  theText = getFile()
  theInput = input("Input some words here:")
  result, wrongList=spellChecker(theInput,theDictionary)
  if result:
    print("There are no spelling errors in the sentence!  Hooray!")
else:
    if len(wrongList) == 1:
        print('There is a spelling error in the sentence!  The word that is wrong is "' +     str(wrongList) + '".')
    elif len(wrongList) > 1:
        print('There are some spelling errors in the sentence!  The words that are wrong are"' + str(wrongList) + '".')

main()

Answer 1

你可以看看标准库里的 difflib 模块。这个模块可以帮助你进行近似字符串匹配，听起来正是你需要的功能。

其实你的字典是放在文件里还是别的地方并不重要，因为你最终都是把它加载到一个列表里。你可以关注一下这个模块里的 get_close_matches() 方法。