How to unread a line in python

2024/10/15 20:22:06

I am new to Python (2.6), and have a situation where I need to un-read a line I just read from a file. Here's basically what I am doing.

  for line in file:print linefile.seek(-len(line),1)zz = file.readline()print zz

However I notice that "zz" and "line" are not the same. Where am I going wrong?

Thanks.

Answer

I don't think for line in file: and seek make a good combination. Try something like this:

while True:line = file.readline()print linefile.seek(-len(line),1)zz = file.readline()print zz# Make sure this loop ends somehow
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