Django creating a custom 500 404 error page

Question

Following the tutorial found here exactly  I cannot create a custom 500 or 404 error page  If I do type in a bad url  the page gives me the default error page  Is there anything I should be checking for that would prevent a custom page from showing up   File directories   mysite      mysite            init   py           init   pyc         settings py         settings pyc         urls py         urls pyc         wsgi py         wsgi pyc     polls          templates              admin                  base site html             404 html             500 html             polls                  detail html                 index html           init   py           init   pyc         admin py         admin pyc         models py         models pyc         tests py         urls py         urls pyc         view py         views pyc     templates      manage py   within mysite settings py I have these enabled   DEBUG   False TEMPLATE DEBUG   DEBUG         TEMPLATE DIRS          C  Users Me Django mysite templates        within mysite polls urls py   from django conf urls import patterns  url  from polls import views  urlpatterns   patterns         url r      views index  name  index        url r    P lt poll id gt  d       views detail  name  detail        url r    P lt poll id gt  d   results     views results  name  results        url r    P lt poll id gt  d   vote     views vote  name  vote        I can post any other code necessary  but what should I be changing to get a custom 500 error page if I use a bad url   Edit  SOLUTION  I had an additional  TEMPLATE DIRS   within my settings py and that was causing the problem

User · Answer

In Django 2   you can use this construction in views py  def handler404 request  exception       return render request   errors 404 html   locals      In settings py  DEBUG   False  if DEBUG is False      ALLOWED HOSTS              127 0 0 1 8000                       if DEBUG is True      ALLOWED HOSTS        In urls py    https   docs djangoproject com en 2 0 topics http views  customizing-error-views handler404    YOUR APP NAME views handler404    Usually i creating default app and handle site-wide errors  context processors in it

User · Answer

If all you need is to show custom pages which have some fancy error messages for your site when DEBUG   False  then add two templates named 404 html and 500 html in your templates directory and it will automatically pick up this custom pages when a 404 or 500 is raised

User · Answer

Under your main views py add your own custom implementation of the following two views  and just set up the templates 404 html and 500 html with what you want to display   With this solution  no custom code needs to be added to urls py  Here s the code   from django shortcuts import render to response from django template import RequestContext   def handler404 request   args    argv       response   render to response  404 html                                         context instance RequestContext request       response status code   404     return response   def handler500 request   args    argv       response   render to response  500 html                                         context instance RequestContext request       response status code   500     return response   Update  handler404 and handler500 are exported Django string configuration variables found in django conf urls   init   py  That is why the above config works   To get the above config to work  you should define the following variables in your urls py file and point the exported Django variables to the string Python path of where these Django functional views are defined  like so     project urls py  handler404    my app views handler404  handler500    my app views handler500    Update for Django 2 0  Signatures for handler views were changed in Django 2 0  https   docs djangoproject com en 2 0 ref views  error-views   If you use views as above  handler404 will fail with message       handler404   got an unexpected keyword argument  exception     In such case modify your views like this   def handler404 request  exception  template name  404 html        response   render to response template name      response status code   404     return response

User · Answer

Official answer   Here is the link to the official documentation on how to set up custom error views   https   docs djangoproject com en stable topics http views  customizing-error-views  It says to add lines like these in your URLconf  setting them anywhere else will have no effect    handler404    mysite views my custom page not found view  handler500    mysite views my custom error view  handler403    mysite views my custom permission denied view  handler400    mysite views my custom bad request view    You can also customise the CSRF error view by modifying the setting CSRF FAILURE VIEW   Default error handlers   It s worth reading the documentation of the default error handlers  page not found  server error  permission denied and bad request  By default  they use these templates if they can find them  respectively  404 html  500 html  403 html  and 400 html   So if all you want to do is make pretty error pages  just create those files in a TEMPLATE DIRS directory  you don t need to edit URLConf at all  Read the documentation to see which context variables are available   In Django 1 10 and later  the default CSRF error view uses the template 403 csrf html   Gotcha   Don t forget that DEBUG must be set to False for these to work  otherwise  the normal debug handlers will be used

User · Answer

No additional view is required  https   docs djangoproject com en 3 0 ref views   Just put the error files in the root of templates directory   404 html 400 html 403 html 500 html   And it should use your error page when debug is False

User · Answer

Django 3 0  here is link how to customize error views  here is link how to render a view  in the urls py  the main one  in project folder   put   handler404    my app name views custom page not found view  handler500    my app name views custom error view  handler403    my app name views custom permission denied view  handler400    my app name views custom bad request view    and in that app  my app name  put in the views py   def custom page not found view request  exception       return render request   errors 404 html        def custom error view request  exception None       return render request   errors 500 html        def custom permission denied view request  exception None       return render request   errors 403 html        def custom bad request view request  exception None       return render request   errors 400 html         NOTE  error 404 html is the path if you place your files into the projects  not the apps  template foldertemplates errors 404 html so please place the files where you want and write the right path   NOTE 2  After page reload  if you still see the old template  change in settings py DEBUG True  save it  and then again to False  to restart the server and collect the new files

User · Answer

Make an error  On the  error page find out from where django is loading templates I mean the path stack In base template dir add these html pages 500 html   404 html  When these errors occur the respective template files will be automatically loaded    You can add pages for other error codes too  like 400 and 403   Hope this help

User · Answer

settings py   DEBUG   False TEMPLATE DEBUG   DEBUG ALLOWED HOSTS     localhost     provide your host name   and just add your 404 html and 500 html pages in templates folder  remove 404 html and 500 html from templates in polls app

User · Answer

Try moving your error templates to     Django mysite templates     I m note sure about this one  but i think these need to be  global  to the website

User · Answer

Add these lines in  urls py  urls py  from django conf urls import   handler400  handler403  handler404  handler500    handler400    my app views bad request  handler403    my app views permission denied  handler404    my app views page not found  handler500    my app views server error           and implement our custom views in views py   views py  from django shortcuts import   render to response   from django template import RequestContext    HTTP Error 400 def bad request request       response   render to response           400 html           context instance RequestContext request                     response status code   400          return response

User · Answer

As one single line  for 404 generic page    from django shortcuts import render to response from django template import RequestContext  return render to response  error 404 html     exception   ex                                         context instance RequestContext request   status 404

User · Answer

From the page you referenced      When you raise Http404 from within a view  Django will load a special view devoted to handling 404 errors  It finds it by looking for the variable handler404 in your root URLconf  and only in your root URLconf  setting handler404 anywhere else will have no effect   which is a string in Python dotted syntax     the same format the normal URLconf callbacks use  A 404 view itself has nothing special  It   s just a normal view    So I believe you need to add something like this to your urls py   handler404    views my 404 view    and similar for handler500

User · Answer

In Django 3 x  the accepted answer won t work because render to response has been removed completely as well as some more changes have been made since the version the accepted answer worked for   Some other answers are also there but I m presenting a little cleaner answer   In your main urls py file   handler404    yourapp views handler404  handler500    yourapp views handler500    In yourapp views py file   def handler404 request  exception       context          response   render request   pages errors 404 html   context context      response status code   404     return response   def handler500 request       context          response   render request   pages errors 500 html   context context      response status code   500     return response   Ensure that you have imported render   in yourapp views py file   from django shortcuts import render   Side note  render to response   was deprecated in Django 2 x and it has been completely removed in verision 3 x

User · Answer

views py def handler404 request  exception       context   RequestContext request      err code   404     response   render to response  404 html     code  err code   context      response status code   404     return response     lt project folder gt  urls py handler404    todo views handler404     This works on django 2 0  Be sure to include your custom 404 html inside the app templates folder

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