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Lazy signup for Django

Project description


django-lazysignup is a package designed to allow users to interact with a site as if they were authenticated users, but without signing up. At any time, they can convert their temporary user account to a real user account.

Read the full documentation.



  • Drop support for Django prior to 2.1.2 (#60 thanks LaundroMat)


Allow a field other than username to be used to better support custom users. (#56, thanks pashinin)


Fix small error in classifiers, as we now only support Django 1.10 and above.


This is a compatibility release with Django 1.10.0. This is now the minimum supported version. If you require compatibility with versions below that, please use version 1.0.2.

  • Fix URL patterns for 1.10.0 compat (#49 ,thanks kevinmickey and nschlemm)


  • Add csrf_token to convert form (thanks jnoss)

  • Fix dependency on incorrect version of six (#47)

  • Minor tidy of the way databases are selected in tests


  • Fix packaging issue


  • Add support for Django 1.7 migrations

  • Drop support for Django 1.6 and earlier

  • Add tests for custom user model

  • Migrated lazy_user’s user to a OneToOneField() from a ForeignKey(unique=True)


Fix another packaging error. Thanks to David Eyk (eykd) for the pull request.


Fix a packaging error. Thanks to Tamas Mako (tomako) for reporting it.


Add compatibility with Django 1.5 and Python 3.3. Note that this does not yet explicitly support Django 1.5’s new pluggable User models in any particular way.

Thanks to Brad Pitcher for this work.


Fix packaging and docs errors.


This is a feature release, that requires a data migration. Use the provided South migration, or add a created date/time field to your LazyUser model manually. This field will be populated when a LazyUser instance is created, and is set to the current date/time.

A test-requirements.txt file has been added to ease installation of test-only dependencies.

A new-style DATABASES structure replaces the old DATABASE_* fields.

Versions of Django earlier than 1.4 are no longer supported. Nothing has been done to explicitly prevent 1.3.x working, but it will no longer be maintained. (Patches to restore support, if it breaks, are welcome.)


Fix packaging error.


This is a docs-only release. Docs have converted to Sphinx, for easier navigation.


This is a bugfix release, which included some docs omitted from the 0.10.0 release.


This is a feature release. Two new decorators have been added: @require_lazy_user and @require_nonlazy_user.

Thanks to Brad Beattie (bradbeattie) for the implementation and tests, and to Adam Coddington (latestrevision) for the original suggestion.


This is a feature release. A custom signal is now fired when a user is converted. Thanks to Olly Smith (oesmith) for the patch.

Versions of Django earlier than 1.3 are now no longer supported. (Nothing has been done to prevent 1.2.x working, but I will no longer take care to make sure that this remains the case.)


This is a feature release. This contains all the features in the 0.8.0 beta series, plus the ability to specify custom templates for the convert view, both via a regular GET and via Ajax. Thanks to percyperez for the idea and initial implementation.

Note that this release is the last feature release that will support Django 1.2 or earlier. 0.9.0 and later will require Django 1.3 or later.


This release introduces the following backwards-incompatible changes:

  • A test project was added to make running the tests a little easier. The old way of running the tests has been removed.

  • The no longer hardcodes convert as the URL prefix (thanks to mitar)


This is a bugfix and feature release. The internal API has changed to no longer depend on session keys for username generation. This should be backwards-compatible as long as you are using the documented API.

The following bugs have been fixed:

  • PEP8 cleanups

  • Tweak to make sure templates are installed (thanks Kurt Grandis)

The following features have been added:

  • Removed the hard dependency on session keys to generate usernames, as it was unnecessary.

  • remove_expired_users should no longer depend on using the database session backend - it will instead use SESSION_COOKIE_AGE to find lazy users who have not logged in recently and whose sessions will therefore have expired.

You should still not use remove_expired_users without reviewing the code; in particular, you may wish to subclass the command and override to_delete().

These changes are somewhat experimental, so this is a beta release - it is not recommended that you run this in production. Testing and feedback is welcome.


This is a feature release. Custom user classes are now supported via the LAZYSIGNUP_USER_MODEL setting. This is a backwards-compatible change.

Thanks to Luke Zapart for the idea and initial implementation.


This is a bugfix release. Issues fixed:

  • The LazySignupBackend no longer relies on a specific User class to authenticate a user. It now uses the fact that there is a relationship between the LazyUser and the main site User class. This fixes the bug where authenticate() was looking directly for UNUSABLE_PASSWORD, and also paves the way for custom user classes.


This is a bugfix release. Issues fixed:

Thanks to Alex Ehlke for the report and patch.


This is a feature release:

  • Users created lazily but not currently logged-in are now correctly detected as lazy users. To facilitate this, a LazyUser model is included. Note that existing code using is_lazy_user only on authenticated users will continue to work, as the old method of checking the backend attribute of the User object has been retained - it’s faster to do that than a potentially unnecessary database query.

    For those who use it, a South migration is provided to create the initial table. Data migration will be handled by South migrations from now on.

  • The canonical import location of is_lazy_user has changed from within lazysignup.templatetags.lazysignup_tags to lazysignup.utils. Existing code that imports from the old location will continue to work.


Bugfix release:

  • Fix an issue where a lazy user would be misidentified as a non-lazy user


This version simplifies the implementation significantly by removing the requirement for a middleware. This is a backwards-incompatible change as the lazysignup.middleware module no longer exists, and needs to be removed from your MIDDLEWARE_CLASSES list.

This change means that you can no longer disable the software by removing the middleware class from your configuration. You might want to do this temporarily in development, for example, when testing that your views still work when an anonymous user is presented to them (perhaps through the user agent blacklisting functionality).

To this end, support for a new settings has been added: ENABLE_LAZYSIGNUP. It’s set to True by default. Setting it to False will both prevent automatic login and automatic user creation.

The allow_lazy_user decorator no longer has to be first in the decorator list. Thanks to Jauco Noordzij for pointing this out initially.

There is now also an is_lazy_user template filter, which will return True if the current user is an automatically created user. It will return False for users who are anonymous, or were authenticated by some other means. Thanks again to Jauco Noordzij for the idea for this feature.

Note that the is_lazy_user filter (which you can also just import and use directly in your view code) is the preferred way of checking for an automatically created user. has_usable_password will continue to return False for such users, but is no longer the canonical way to identify them. Users authenticated with other authentication backends (for example, LDAP backends) may return False when has_usable_password is called.


This version fixes a number of issues, adds new features and has backwards- incompatible changes:

  • Fix a RST issue in README

  • Fix an issue where a POST to the convert view would break if the user was anonymous. The convert view now redirects to the LOGIN_URL by default, parameterised in the view.

New features:

  • It is now easier to customise the process of converting a lazy user into a real user. Previous versions allowed a custom form to be passed to the convert view, but the code always expected a username and password1 field to get credentials from to log the user in. Now, a new get_credentials() method is called on the form to obtain these credentials.

  • The tests module now includes a no_lazysignup decorator that you can apply to a method on your test case, which removes the lazy signup middleware for the duration of that test only. This is useful for testing what happens when a view that is marked with with the allow_lazy_user decorator ends up with an anonymous user (most commonly, when a search engine visits).

Backwards-incompatible changes:

  • Generated usernames are now based on the session key, rather than actually being the session key. This is to avoid a potential security issue where an app might simply display a username, giving away a significant part of the user’s session key. The username is now generated from a SHA1 hash of the session key. This change means that existing generated users will become invalid.


This version introduces a backwards-incompatible changes, renaming the @allow_lazy decorator to @allow_lazy_user. This is to avoid confusion with the decorator of the same name in django.utils.functional.


This version fixes a number of issues:

  • Correct a duplicated test

  • Fix a bug where a new user would not be created if they already had a session key.

It also introduces a new feature, user agent blacklisting. This aims to prevent explosive growth in the number of users created by search engines, etc. This feature is still in test, so patches and feedback welcome. Note that this introduces a backwards-incompatibly behaviour. Prior to this release, it was safe to assume that all views marked with the @allow_lazy decorator would receive an authenticated user. This is now no longer the case.

See the README.rst file for more information.


  • Compatibility fixes for Django <1.2

  • The convert view is now itself lazy


  • Fix some packaging errors


  • Initial release

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