How to read CSV file one row at the time in a range and some delay in between

[perfringo]

Something like this?

import time

with open('one_row_at_time.csv', 'r') as f:
    for i, line in enumerate(f, start=1):
        if i in range(5, 15):       # rows 5-14
            print(line)             # use line.rstrip() to handle newline if needed
            time.sleep(2)           

One should break out of loop if needed lines are processed, but it should be trivial to add/refactor code. There is also itertools module with suitable functions.

As you probably know, slice will not raise any error if indices are out-of-bounds. So you can't be sure of number of lines (if any) printed/returned:

>>> 'abc'[2:20]
'c'
>>> 'abc'[5:20]
''