Django URL with parameter not working with include - django

Question

I am trying to pass a parameter to a url before my include statement. I think my problem should be similar to this one, but I can't figure out why mine isn't working. I get the error NoReverseMatch at /womens/ Reverse for 'shampoo' with arguments '('womens',)' not found. 1 pattern(s) tried: ['(?P<gender>womens|mens)/items/shampoo/$']
*config.urls*
urlpatterns = [
re_path(r'(?P<gender>womens|mens)/items/$, include('items.urls')),
...
]
*items.urls*
urlpatterns = [
path('shampoo', views.shampoo, name='shampoo'),
path('soap', views.soap, name='soap'),
...
]
{% url 'items:shampoo' gender='male' %}
I expect to get male/items/shampoo, but it doesn't work. Despite this, I can still manually go to male/items/shampoo.

Answer 1

This might work when you do it manually like male/items/shampoo, but as it is giving a NoReverseMatch error, Django is not able to find a matching URL pattern that you provided which included the parameters.
After looking into this for some time, something like this might be happening when you use {% url 'items:shampoo' gender='male' %}
Assuming you are running this on your localhost, you expect the URL to look like male/items/shampoo
This url says, look into male section, among items show shampoo.
But you are passing the parameter in the wrong place. {% url 'items:shampoo' gender='male' %} means that the parameter male is passed to a url which has a namespace of shampoo. The URL with the namespace of shampoo does not accept any parameters.
Maybe try changing your code as follows.
*config.urls*
urlpatterns = [
re_path(r'^$', include('items.urls')),
...
]
from django.conf.urls import url, path
*items.urls*
urlpatterns = [
url(r'^(?P<gender>\w+)/items/shampoo/$', views.shampoo, name='shampoo'),
path('soap', views.soap, name='soap'),
...
]