will using list comprehension to read a file automagically call close()

Question

Does the following syntax close the file:

lines = [line.strip() for line in open(\'/somefile/somewhere\')]

Bonus points if you can demonstr

Answer 1

This is possible to read and close a file in list comprehension using the more_itertools library¹:

import more_itertools as mit

lines = [line.strip() for line in mit.with_iter(open("/somefile/somewhere"))]

Note more_itertools is a third-party package. Install via pip install more_itertools.

See also the documentation for more on more_itertools.with_iter.