Question

Hello I am trying to read a file in Python 8 lines at a time and use the current 8 lines as str variables

However I am unable to do this correctly and would appreciate any help

with open("test.txt", 'r') as infile:
    lines_gen = islice(infile, 8)
    for lines in lines_gen:
        firstname = str(lines[0])
        lastname = str(lines[1])
        email = str(lines[2])

…

How can I achieve this

*cheers

And ty for any help

Answer 1

A simple implementation using itertools.islice

from itertools import islice
with open("test.txt") as fin:
    try:
        while True:
            data =  islice(fin, 0, 8)

            firstname = next(data)
            lastname = next(data)
            email = next(data)
            #.....
    except StopIteration:
        pass

A better more pythonic implementation

>>> from collections import namedtuple
>>> from itertools import islice
>>> records = namedtuple('record',
                  ('firstname','lastname','email' #, .....
               ))
>>> with open("test.txt") as fin:
    try:
        while True:
            data =  islice(fin, 0, 3)

            data = record(*data)
            print data.firstname, data.lastname, data.email #.......
    except (StopIteration, TypeError):
        pass