Re: Following tutoria: View not defined

Hi ! You have to import your view.

Like this :

from .views import hello

Le dimanche 29 octobre 2017 21:39:12 UTC+1, Andre Basel a écrit :

I am totally new to Django, and working through the following tutorial https://djangobook.com/views-urlconfs/

Ihavecreatddf the following view in views.py

from django.http import HttpResponse

def hello(request):
    return HttpResponse("Hello world")

 And then as per the tutorial updated urls.py as follows:

from django.conf.urls import url
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^hello/$', hello),
]

 When I try an browse http://127.0.0.1:8000/ I now no can no longer connect and the console shows the following error.

System check identified no issues (0 silenced).
October 29, 2017 - 20:14:10
Django version 1.11.6, using settings 'mysite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[29/Oct/2017 20:14:14] "GET / HTTP/1.1" 200 1716
Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f1eae0c4268>
Traceback (most recent call last):
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/utils/autoreload.py", line 228, in wrapper
    fn(*args, **kwargs)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/management/commands/runserver.py", line 125, in inner_run
    self.check(display_num_errors=True)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/management/base.py", line 359, in check
    include_deployment_checks=include_deployment_checks,
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/management/base.py", line 346, in _run_checks
    return checks.run_checks(**kwargs)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/checks/registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/checks/urls.py", line 16, in check_url_config
    return check_resolver(resolver)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/core/checks/urls.py", line 26, in check_resolver
    return check_method()
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/urls/resolvers.py", line 254, in check
    for pattern in self.url_patterns:
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/urls/resolvers.py", line 405, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/abasel/Dajango_Projects/my_first_project/project_venv/lib64/python3.6/site-packages/django/urls/resolvers.py", line 398, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 978, in _gcd_import
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
  File "/home/abasel/Dajango_Projects/my_first_project/mysite/mysite/urls.py", line 21, in <module>
    url(r'^hello/$', hello),
NameError: name 'hello' is not defined

I am not sure how to proceed.

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