Python: read all text file lines in loop

Question

I want to read huge text file line by line (and stop if a line with \"str\" found). How to check, if file-end is reached?

fn = \'t.log\'
f = open(fn, \'r\')
         


        

Answer 1

You can stop the 2-line separation in the output by using

    with open('t.ini') as f:
       for line in f:
           print line.strip()
           if 'str' in line:
              break