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path: root/docs/ref/exceptions.txt
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2026-04-24Replaced references in docs to accepted PEPs with specific Python docs links.Mike Edmunds
Where the docs used `:pep:` links for established Python language features, replaced them with direct references to the Python docs (usually glossary terms).
2025-10-16Fixed #28586 -- Added model field fetch modes.Adam Johnson
May your database queries be much reduced with minimal effort. co-authored-by: Andreas Pelme <andreas@pelme.se> co-authored-by: Simon Charette <charette.s@gmail.com> co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>
2025-08-25Refs #36485 -- Removed unnecessary parentheses in :meth: and :func: roles in ↵David Smith
docs.
2025-03-10Fixed #33579 -- Specialized exception raised on forced update failures.Simon Charette
Raising DatabaseError directly made it harder than it should to differentiate between IntegrityError when a forced update resulted in no affected rows. Introducing a specialized exception allows for callers to more easily silence, log, or turn them update failures into user facing exceptions (e.g. 404s). Thanks Mariusz for the review.
2023-09-18Removed versionadded/changed annotations for 4.2.Mariusz Felisiak
This also removes remaining versionadded/changed annotations for older versions.
2023-02-14Fixed CVE-2023-24580 -- Prevented DoS with too many uploaded files.Markus Holtermann
Thanks to Jakob Ackermann for the report.
2022-11-07Refs #33374 -- Adjusted full match condition handling.Simon Charette
Adjusting WhereNode.as_sql() to raise an exception when encoutering a full match just like with empty matches ensures that all case are explicitly handled.
2021-10-20Refs #32956 -- Capitalized HTTP/HTTPS in comments, docs, and docstrings.David Smith
2021-10-18Refs #32956 -- Changed docs to treat the acronym HTTP phonetically.David Smith
2021-09-20Removed versionadded/changed annotations for 3.2.Mariusz Felisiak
2020-09-09Mentioned ASGI handler in SuspiciousOperation docs.Mariusz Felisiak
2020-09-09Fixed #31962 -- Made SessionMiddleware raise SessionInterrupted when session ↵Hasan Ramezani
destroyed while request is processing.
2020-07-22Doc'd Model.MultipleObjectsReturned docs and improved documentation related ↵Adam Johnson
with models exceptions.
2020-05-13Removed versionadded/changed annotations for 3.0.Mariusz Felisiak
2020-03-13Refs #31224 -- Doc'd async adapter functions.Andrew Godwin
2019-11-19Fixed #27272 -- Added an on_delete RESTRICT handler to allow cascading ↵Daniel Izquierdo
deletions while protecting direct ones.
2019-06-20Fixed #30451 -- Added ASGI handler and coroutine-safety.Andrew Godwin
This adds an ASGI handler, asgi.py file for the default project layout, a few async utilities and adds async-safety to many parts of Django.
2017-09-22Removed versionadded/changed annotations for 1.11.Tim Graham
2017-01-18Refs #23919 -- Removed Python 2 notes in docs.Tim Graham
2017-01-17Removed versionadded/changed annotations for 1.10.Tim Graham
2017-01-17Refs #26013 -- Removed deprecated django.core.urlresolvers module.Tim Graham
2016-10-06Documented AppRegistryNotReady.Aymeric Augustin
2016-08-08Moved EmpytResultSet to django.core.exceptions.Johannes Dollinger
This removes the need for some inner imports.
2016-05-12Fixed #21231 -- Enforced a max size for GET/POST values read into memory.Andre Cruz
Thanks Tom Christie for review.
2015-12-31Fixed #26013 -- Moved django.core.urlresolvers to django.urls.Marten Kenbeek
Thanks to Tim Graham for the review.
2015-12-03Fixed #25761 -- Added __cause__.__traceback__ to reraised exceptions.Raphaël Hertzog
When Django reraises an exception, it sets the __cause__ attribute even in Python 2, mimicking Python's 3 behavior for "raise Foo from Bar". However, Python 3 also ensures that all exceptions have a __traceback__ attribute and thus the "traceback2" Python 2 module (backport of Python 3's "traceback" module) relies on the fact that whenever you have a __cause__ attribute, the recorded exception also has a __traceback__ attribute. This is breaking testtools which is using traceback2 (see https://github.com/testing-cabal/testtools/issues/162). This commit fixes this inconsistency by ensuring that Django sets the __traceback__ attribute on any exception stored in a __cause__ attribute of a reraised exception.
2015-09-23Removed versionadded/changed annotations for 1.8.Tim Graham
2015-05-08Fixed #24763 -- Moved DoesNotExist exception to model docs.David Krisch
2015-02-27Fixed #24359 -- Cleaned up docs/ref/exceptions.htmlTim Graham
2015-01-02Fixed #9104 -- Moved FieldDoesNotExist to core.exceptionsDaniel Pyrathon
2014-11-25Fixed #23682 -- Enhanced circular redirects detection in tests.wrwrwr
When the test client detects a redirect to a URL seen in the currently followed chain it will now raise a RedirectCycleError instead of just returning the first repeated response. It will also complain when a single chain of redirects is longer than 20, as this often means a redirect loop with varying URLs, and even if it's not actually one, such long chains are likely to be treated as loops by browsers. Thanks Preston Timmons, Berker Peksag, and Tim Graham for reviews.
2014-08-20Prevented data leakage in contrib.admin via query string manipulation.Simon Charette
This is a security fix. Disclosure following shortly.
2014-04-26Updated doc links to point to Python 3 documentationClaude Paroz
2014-03-24Removed versionadded/changed annotations for 1.6.Tim Graham
2014-02-25Fixed docs typos.Szczepan Cieślik
2014-02-08Fixed #16192 -- Made unique error messages in ModelForm customizable.Loic Bistuer
Overriding the error messages now works for both unique fields, unique_together and unique_for_date. This patch changed the overriding logic to allow customizing NON_FIELD_ERRORS since previously only fields' errors were customizable. Refs #20199. Thanks leahculver for the suggestion.
2013-09-05Fixed #21044 -- Documented django.core.urlresolvers.Resolver404Tim Graham
Thanks Keryn Knight for the suggestion.
2013-08-02Fixed #20786 -- Cleaned up docs/ref/exceptions.txtDominic Rodger
Thanks Daniele Procida for the suggestion and edits.
2013-06-04Fixed #17601 -- expose underlying db exceptions under py2James Aylett
Use __cause__ to expose the underlying database exceptions even under python 2.
2013-05-25Fixed #19866 -- Added security logger and return 400 for SuspiciousOperation.Preston Holmes
SuspiciousOperations have been differentiated into subclasses, and are now logged to a 'django.security.*' logger. SuspiciousOperations that reach django.core.handlers.base.BaseHandler will now return a 400 instead of a 500. Thanks to tiwoc for the report, and Carl Meyer and Donald Stufft for review.
2013-04-20Adapted uses of versionchanged/versionadded to the new form.Juan Catalano
Refs #20104.
2013-02-27Refactored database exceptions wrapping.Aymeric Augustin
Squashed commit of the following: commit 2181d833ed1a2e422494738dcef311164c4e097e Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 27 14:28:39 2013 +0100 Fixed #15901 -- Wrapped all PEP-249 exceptions. commit 5476a5d93c19aa2f928c497d39ce6e33f52694e2 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Tue Feb 26 17:26:52 2013 +0100 Added PEP 3134 exception chaining. Thanks Jacob Kaplan-Moss for the suggestion. commit 9365fad0a650328002fb424457d675a273c95802 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Tue Feb 26 17:13:49 2013 +0100 Improved API for wrapping database errors. Thanks Alex Gaynor for the proposal. commit 1b463b765f2826f73a8d9266795cd5da4f8d5e9e Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Tue Feb 26 15:00:39 2013 +0100 Removed redundant exception wrapping. This is now taken care of by the cursor wrapper. commit 524bc7345a724bf526bdd2dd1bcf5ede67d6bb5c Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Tue Feb 26 14:55:10 2013 +0100 Wrapped database exceptions in the base backend. This covers the most common PEP-249 APIs: - Connection APIs: close(), commit(), rollback(), cursor() - Cursor APIs: callproc(), close(), execute(), executemany(), fetchone(), fetchmany(), fetchall(), nextset(). Fixed #19920. commit a66746bb5f0839f35543222787fce3b6a0d0a3ea Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Tue Feb 26 14:53:34 2013 +0100 Added a wrap_database_exception context manager and decorator. It re-throws backend-specific exceptions using Django's common wrappers.
2013-01-02Fixed #19516 - Fixed remaining broken links.Tim Graham
Added -n to sphinx builds to catch issues going forward.
2011-10-14Fixed many more ReST indentation errors, somehow accidentally missed from ↵Luke Plant
[16955] git-svn-id: http://code.djangoproject.com/svn/django/trunk@16983 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-09-04Converted links to external topics so they use intersphinx extension markup.Ramiro Morales
This allows to make these links more resilent to changes in the target URLs. Thanks Jannis for the report and Aymeric Augustin for the patch. Fixes #16586. git-svn-id: http://code.djangoproject.com/svn/django/trunk@16720 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-03-22Corrected a number of mislinked crossrefs and added a few new crossref ↵Gabriel Hurley
targets found in/via the 1.3 release. git-svn-id: http://code.djangoproject.com/svn/django/trunk@15894 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-03-03Added crossref targets for a couple of Django exceptions and cleaned up ↵Gabriel Hurley
related reST markup. git-svn-id: http://code.djangoproject.com/svn/django/trunk@15733 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-23Fixed #14545 -- Added ValidationError to Exceptions Reference docs and ↵Gabriel Hurley
improved Sphinx metadata. git-svn-id: http://code.djangoproject.com/svn/django/trunk@14329 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-08-19Fixed #14141: docs now use the :doc: construct for links between documents.Jacob Kaplan-Moss
Thanks, Ramiro Morales. git-svn-id: http://code.djangoproject.com/svn/django/trunk@13608 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-05-09Fixed #6842 -- Added reference documentation on Django's exceptions. Thanks ↵Russell Keith-Magee
to timo for the patch. git-svn-id: http://code.djangoproject.com/svn/django/trunk@13180 bcc190cf-cafb-0310-a4f2-bffc1f526a37
generated by cgit v1.3 (git 2.53.0) at 2026-06-30 20:08:34 +0000