what do I use if pk is none for the query in django code example

Example 1: objects.filter django

>>> Entry.objects.filter(blog_id=4)

Example 2: django filter values with e and operator

exact
iexact
contains
icontains
in
gt
gte
lt
lte
startswith
istartswith
endswith
iendswith
range

date
year
iso_year
month
day
week
week_day
iso_week_day
quarter
time
hour
minute
second

isnull
regex
iregex