NoReverseMatch Error on Django Redirect

[tango4567]

NoReverseMatch at /register

Reverse for 'register' not found. 'register' is not a valid view function or pattern name.

Request Method:	POST
http://127.0.0.1:8000/register
4.1
NoReverseMatch
Reverse for 'register' not found. 'register' is not a valid view function or pattern name.
C:\Users\TarunMahajan.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\urls\resolvers.py, line 803, in _reverse_with_prefix
website.views.register
C:\Users\TarunMahajan.virtualenvs\pracPy-b7vdO4P5\Scripts\python.exe
3.10.4
['C:\Users\TarunMahajan\djangoProjects\pracPy', 'C:\Python310\python310.zip', 'C:\Python310\DLLs', 'C:\Python310\lib', 'C:\Python310', 'C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5', 'C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages']
Mon, 22 Aug 2022 01:45:33 +0000

Log

Environment:

Request Method: POST
Request URL: http://127.0.0.1:8000/register

Django Version: 4.1
Python Version: 3.10.4
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'website']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']

Traceback (most recent call last):
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\core\handlers\exception.py", line 55, in inner
response = get_response(request)
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\core\handlers\base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\TarunMahajan\djangoProjects\pracPy\website\views.py", line 83, in register
return redirect('register')
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\shortcuts.py", line 48, in redirect
return redirect_class(resolve_url(to, *args, **kwargs))
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\shortcuts.py", line 145, in resolve_url
return reverse(to, args=args, kwargs=kwargs)
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\urls\base.py", line 88, in reverse
return resolver._reverse_with_prefix(view, prefix, *args, **kwargs)
File "C:\Users\TarunMahajan\.virtualenvs\pracPy-b7vdO4P5\lib\site-packages\django\urls\resolvers.py", line 803, in _reverse_with_prefix
raise NoReverseMatch(msg)

Exception Type: NoReverseMatch at /register
Exception Value: Reverse for 'register' not found. 'register' is not a valid view function or pattern name.

Here we can see register function is registered
Using the URLconf defined in tarunmahajan.urls, Django tried these URL patterns, in this order:

1. admin/
3. old
4. about
5. hello
6. register

[tango4567]

Well I used return render(request, 'register.html') instead of return redirect('register') so it's solved my problem temporary but I'm keep looking on it. Even after registering function properly in urls.py

Some interesting conversation I found mention below.

1. NoReverseMatch error
2. NoReverseMatch at /blog/redirect2
3. Why am I getting no reverse match error in django 3.2?

Solution: Well I missed to mention function name in urlpatterns arrays at urls.py
from django.urls import path
from . import views

Previous code

urlpatterns = [
    path('', views.index),
    path('old', views.view),
    path('about', views.about),
    path('hello', views.say_hello),
    path('register', views.register),
    path('login', views.login),
    path('logout', views.logout)
]

Changed code

urlpatterns = [
    path('', views.index),
    path('old', views.view, name='old'),
    path('about', views.about, name='about'),
    path('hello', views.say_hello, name='say_hello'),
    path('register', views.register, name='register'),
    path('login', views.login,name='login'),
    path('logout', views.logout, name='logout')
]