QS filter does not work. What is the reason?

Question

Django

Good day to all.

There are 2 code options, 1 works and the second doesn't. The search parameter embedded in the variable is somehow incorrectly passed. Can you suggest how to fix it?
Working:
qs = qs.filter(Q(type=2) | Q(type=1))
Not working:

query = "Q(type=2) | Q(type=1)"
qs = qs.filter(query)

Throws an error:
ValueError: too many values ​​to unpack (expected 2)

Thanks in advance.

Answer 1

from functools import reduce
from operator import or_

from django.db.models import Q

values = (Q(type=int(j)) for j in (i.strip() for i in (query_type or '').split(',')) if j.isdigit())
query = reduce(or_, values, Q())

qs = qs.filter(query)