Django-filter field name is a python builtin keyword

Question

I'm trying to rebuild a legacy API with DRF and django-filter. One of the field names is from, but

from = DateTimeFilter(field_name="created_dt", lookup_expr="gte")

is not valid Python. Can I name the variable

from_ = DateTimeFilter(...)

but still expose the API parameter as ?from= to users?

Answer 1

Override the __init__() method of FilterSet class

from django_filters import rest_framework as drf_filters


class FooFilterSet(drf_filters.FilterSet):
    foo = drf_filters.CharFilter()  # some random field

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.filters["from"] = drf_filters.DateTimeFilter(field_name="created_dt", lookup_expr="gte")

    class Meta:
        model = Foo
        fields = ('foo', 'from')