Python detecting EOF

问题

I'm trying to write an if statement that goes as such, while reading a csv file:

if row = [] or EOF:
    do stuff

I've searched online and couldn't find any way of doing this. Help?

回答1:

with open(fname, 'rb') as f:
    for line in f:
        # line = line.strip(' \r\n') # to remove spaces and new line chars if needed
        if not line:
            do stuff
    do stuff

The above is sufficient.

To check if you are in the end of file you can also do:

import os
with open(fname, 'rb') as f:
   is_end = f.tell() == os.fstat(f.fileno()).st_size

but I think you do not need to.

回答2:

Not sure if I fully understand you but to ignore empty lines I would use if line.strip().

with open("in.txt") as f:
    for line in f:
        if line.strip():
            # append
        else:
            # do what you need
    # do last requirement

来源：https://stackoverflow.com/questions/25510222/python-detecting-eof