当我的文本文件明显多于 1 行时，为什么会出现此错误？

Question

I'm a beginner in Python. I've checked my text files, and definitely have more than 1 lines, so I don't understand why it gave me the error on

---> 11     Coachid.append(split[1].rstrip())
  

IndexError: list index out of range

Answer 1

If you want to loop over lines of a file, you have to use

for line in f.readlines()
    ...

Answer 2

The problem are the lines:

split=line.split(",")
Coachname.append(split[0].rstrip())
Coachid.append(split[1].rstrip())

The first line assumes that line contains at lest one comma so that after method split is called variable split will be a list of at least length two. But if line contains no commas, then split will have length 1 and Coachid.append(split[1].rstrip()) will generate the error you are getting. You need to add some conditional tests of the length of split .

Update

Your code should look like (assuming that the correct action is to append an empty string to the Coachid list if it is missing from the input):

split=line.split(",")
split_length = len(split)
Coachname.append(split[0].rstrip())
# append '' if split_length is less than 2:
Coachid.append('' if split_length < 2 else split[1].rstrip())
etc. for the other fields