I cant figure out this error

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Denis Prosser

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Mar 12, 2021, 5:40:47 PM3/12/21
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nvironment:


Request Method: GET

Django Version: 3.1.7
Python Version: 3.9.0
Installed Applications:
['polls.apps.PollsConfig',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
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']


Template error:
In template C:\Users\Mr Prosser\PycharmProjects\pythonProject15\pollster\templates\base.html, error at line 0
   Reverse for 'detail' with arguments '('',)' not found. 1 pattern(s) tried: ['polls/(?P<question_id>[0-9]+)$']
   1 : <!DOCTYPE html>
   2 : <html lang="en">
   3 : <head>
   4 :     <meta charset="UTF-8">
   5 :     <link href="https://cdn.jsdelivr.net/npm/boot...@5.0.0-beta2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BmbxuPwQa2lc/FVzBcNJ7UAyJxM6wuqIj61tLrc4wSX0szH/Ev+nYRRuWlolflfl" crossorigin="anonymous">
   6 :     <title>Pollster {%block title%}{% endblock %}</title>
   7 : </head>
   8 : <body>
   9 :     <div class = "container">
   10 :         <div class="row">


Traceback (most recent call last):
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\Mr Prosser\PycharmProjects\pythonProject15\pollster\polls\views.py", line 13, in index
    return render(request, 'polls/index.html', context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\shortcuts.py", line 19, in render
    content = loader.render_to_string(template_name, context, request, using=using)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\loader.py", line 62, in render_to_string
    return template.render(context, request)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\backends\django.py", line 61, in render
    return self.template.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 170, in render
    return self._render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 162, in _render
    return self.nodelist.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 938, in render
    bit = node.render_annotated(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 905, in render_annotated
    return self.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\loader_tags.py", line 150, in render
    return compiled_parent._render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 162, in _render
    return self.nodelist.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 938, in render
    bit = node.render_annotated(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 905, in render_annotated
    return self.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\loader_tags.py", line 62, in render
    result = block.nodelist.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 938, in render
    bit = node.render_annotated(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 905, in render_annotated
    return self.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\defaulttags.py", line 312, in render
    return nodelist.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 938, in render
    bit = node.render_annotated(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 905, in render_annotated
    return self.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\defaulttags.py", line 211, in render
    nodelist.append(node.render_annotated(context))
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\base.py", line 905, in render_annotated
    return self.render(context)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\template\defaulttags.py", line 446, in render
    url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\urls\base.py", line 87, in reverse
    return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
  File "C:\Users\Mr Prosser\.virtualenvs\pythonProject15\lib\site-packages\django\urls\resolvers.py", line 685, in _reverse_with_prefix
    raise NoReverseMatch(msg)

Exception Type: NoReverseMatch at /polls/
Exception Value: Reverse for 'detail' with arguments '('',)' not found. 1 pattern(s) tried: ['polls/(?P<question_id>[0-9]+)$']

Kasper Laudrup

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Mar 12, 2021, 7:29:20 PM3/12/21
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https://betterprogramming.pub/how-to-ask-questions-about-programming-dcd948fcd2bd

Chetan Ganji

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Mar 13, 2021, 8:48:33 AM3/13/21
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Good Read!
Thanks Kasper 😊

On Sat, Mar 13, 2021, 5:58 AM Kasper Laudrup <lau...@stacktrace.dk> wrote:
https://betterprogramming.pub/how-to-ask-questions-about-programming-dcd948fcd2bd

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Kasper Laudrup

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Mar 13, 2021, 9:00:17 AM3/13/21
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On 13/03/2021 14.47, Chetan Ganji wrote:
> Good Read!
> Thanks Kasper 😊
>

No problem. I'm not the author, but feel free to post it whenever
someone posts "questions" like the one I replied to.

I think at least half of the people asking questions here should read it.

So many questions here follow the form of:

"I have problem with my dajngo and get error. Plz help. Is urgent.

Ps. am new in djungo."

Maybe, but not always with a hard to read screenshot of some error
message without any context.

The broken English is perfectly acceptable, English isn't my native
language either btw., but that so many people don't want to spend at
least a bit of time trying to write a question and then expect others to
spend the time trying to figure out what they really mean is so frustrating.

Especially considering we all do this for free.

But I could write a long rant about that some time :-)

Kind regards,

Kasper Laudrup
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