Python文件IndexError

Question

我的代码：

def readData(fname):
    year = []
    loc = []

    with open(fname) as f:
        for line in f.read():
            curr_line = line.split('\t')
            print(curr_line)
            year.append(curr_line[0])
            loc.append(curr_line[1])

    return (year,loc)

def findLocation(yrList,locList,year):
   yrList = [str(yr) for yr in yrList]
   if year not in yrList:
       return "Not found."
   return locList[yrList.find(str(year))]

def main():
    yr, loc = readData('olympics.txt')
    print(yr)
    print(loc)
    x = input("Enter year: ")
    print(findLocation(yr,loc,x))

执行main（）函数后，在输入年份后给出了这个错误

Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    main()
  File "C:\Users\MyName\Downloads\Homework5.py", line 25, in main
    print(findLocation(yr,loc,x))
  File "C:\Users\MyName\Downloads\Homework5.py", line 18, in findLocation
    return locList[yrList.find(year)]
AttributeError: 'list' object has no attribute 'find'

有人可以解释我的代码有什么问题吗？为什么我会收到此错误？

Answer 1

编写我的解决方案作为答案而不仅仅是对未来访问者的评论：

如果要在列表中查找值的索引，可以使用yrList.index(year)，它将返回列表中元素的索引或抛出您必须捕获的ValueError，而不是不存在的.find。