检查Python文件中是否有多个匹配项

Question

用户输入数据。数据通过文件的所有行进行检查。如果他输入的内容与一行相对应，则打印出来。你知道吗

如果结果不止一个，我希望循环输入过程，直到用户对其选择进行足够的细化，以便只找到一个结果。 我可以在哪里使用“mutipleAnswersAreFound”？你知道吗

我的代码：

def search()
    with open("file.txt") as f:
        nameSearch = str(raw_input("Enter first name, last name, email, or phone: "))
        for line in f: 
            if nameSearch in line: 
                print line
            else if 'mutipleAnswersAreFound' :
                search()

Answer 1

将其包装为无限循环，当匹配计数小于或等于1时将其打断。你知道吗

def search()
  while True:
    count=0
    with open("file.txt") as f:
      nameSearch = str(raw_input("Enter first name, last name, email, or phone: "))
      for line in f: 
        if nameSearch in line: 
            print line
            count+=1
      if count > 1 :
        print 'Multiple matches, please refine your search'
      else: 
        break