aRegius

a = [[], "sgsegs", []]
b = [i for i in a if i]

unique_list = list({d.get('id'):d for d in mylist}.values())

Two sets are equal if and only if every element of each set is contained in the other (each is a subset of the other). A set is less than another set if and only if the first set is a proper subset of the second set (is a subset, but is not equal). A set is greater than another set if and only if the first set is a proper superset of the second set (is a superset, but is not equal).

If multiple items are minimal, the function returns the first one encountered.

from random import choice
from string import ascii_lowercase as abc
from textwrap import wrap

text = 'abcdefghijlkmnorpq'

diff = set(abc).difference
for a, b, c in wrap(text, 3):
    b = choice(tuple(diff(a, b, c)))
    print(a, b, c, sep='')

from pprint import pprint
films = ('Форсаж: Хоббс и Шоу', 'Вельзевул', 'Приключения Реми')
rasp = (
    (('10:00', 'Kino Forum'), ('10:00', 'Kino Forum'), ('10:00', 'Lumiera Cinema (ЦУМ)')),
    (('12:50', 'Chaplin MEGA Park'), ('23:50', 'Chaplin MEGA Alma-Ata')),
    (('10:00', 'Lumiera Cinema (ЦУМ)'), ('10:00', 'Nomad Cinema'))
)
result = [
    (k, *v)
    for k, r in zip(films, rasp)
    for v in r
]

pprint(result)

[('Форсаж: Хоббс и Шоу', '10:00', 'Kino Forum'),
 ('Форсаж: Хоббс и Шоу', '10:00', 'Kino Forum'),
 ('Форсаж: Хоббс и Шоу', '10:00', 'Lumiera Cinema (ЦУМ)'),
 ('Вельзевул', '12:50', 'Chaplin MEGA Park'),
 ('Вельзевул', '23:50', 'Chaplin MEGA Alma-Ata'),
 ('Приключения Реми', '10:00', 'Lumiera Cinema (ЦУМ)'),
 ('Приключения Реми', '10:00', 'Nomad Cinema')]