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A high-level, Pythonic web application framework based on Pyramid and SQLAlchemy. It includes an extensible Content Management System called the Kotti CMS.

Project description

pypi license

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Kotti is a high-level, Pythonic web application framework based on Pyramid and SQLAlchemy. It includes an extensible Content Management System called the Kotti CMS (see below).

Kotti is most useful when you are developing applications that

  • have complex security requirements,

  • use workflows, and/or

  • work with hierarchical data.

Built on top of a number of best-of-breed software components, most notably Pyramid and SQLAlchemy, Kotti introduces only a few concepts of its own, thus hopefully keeping the learning curve flat for the developer.

Kotti CMS

Kotti CMS is a content management system that’s heavily inspired by Plone. Its main features are:

  • User-friendliness: editors can edit content where it appears; thus the edit interface is contextual and intuitive

  • WYSIWYG editor: includes a rich text editor

  • Responsive design: Kotti builds on Bootstrap, which looks good both on desktop and mobile

  • Templating: you can extend the CMS with your own look & feel with almost no programming required

  • Add-ons: install a variety of add-ons and customize them as well as many aspects of the built-in CMS by use of an INI configuration file

  • Security: the advanced user and permissions management is intuitive and scales to fit the requirements of large organizations

  • Internationalized: the user interface is fully translatable, Unicode is used everywhere to store data


Kotti is offered under the BSD-derived Repoze Public License.


See installation instructions.

Support and Documentation

Read Kotti’s extensive documentation on Read the Docs.

If you have questions or need help, you can post on our mailing list / forum or join us on IRC: #kotti on

If you think you found a bug, open an issue on our Github bugtracker.


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Kotti is actively developed and maintained. We adhere to high quality coding standards, have an extensive test suite with high coverage and use continuous integration.

Contributions are always welcome, read our contribution guidelines and visit our Github repository.


Kotti was created by Daniel Nouri and is currently maintained by Andreas Kaiser.

Major contributing authors include:

  • Andreas Kaiser

  • Andreas Zeidler

  • Christian Neumann

  • Daniel Nouri

  • Jure Cerjak

  • Marco Scheidhuber

  • Nuno Teixeira

  • Tom Lazar

For a complete list of contributors, see

Change History

2.0.9 - 2022-05-05

  • Replace py-bcrypt (unmaintained, last release in 2013) with bcrypt.

  • Pin bleach to <5 (incompatible API changes).

2.0.8 - 2022-05-05

  • Brownbag release (hidden).

2.0.7 - 2021-09-02

  • Add compatibility for (and require) SQLAlchemy 1.4.

  • Fix url_normalizer tests (not picked up before).

  • Optimize traversal for applications with large Node subclass hierarchies.

  • Add proper caching for get_root.

2.0.6 - 2021-05-12

  • Fix performance issue: Content._tags is configured with lazy="select" now. This doesn’t cause any change in API usage, however it speeds up selects on Node and descendants by 1-2 orders of magnitude in some cases at the price of a slight performance degradation in scenarios with few tables and heavy tag usage.

  • Update dependencies to their most recent compatible versions.

2.0.5 - 2021-03-16

  • Fix sanitizer error when values are None (ie nothing to sanitize at all).

  • Pin Pyramid to < 2 (for now).

  • Pin SQLAlchemy to < 1.4 to prevent no longer working private import in sqlalchemy-utils.

2.0.4 - 2020-11-20

  • Replace deprecated bleach_whitelist with its successor bleach-allowlist.

  • Upgrade iso8601.

2.0.3 - 2020-11-18

  • Upgrade to pytest>=6.

  • Replace pytest-pep8 with pytest-flake8; fix or silence flake8 warnings/errors in existing code (mostly tests and migrations).

2.0.2 - 2020-06-22

  • Upgrade requirements.txt. [fixes #576]

  • Remove CircleCI

  • Fix broken tags widget (#562).

  • Run pyupgrade --py36-plus on all Python files to use some more modern language features where appropriate (for example f-strings).

  • Declare Python 3.7 and 3.8 compatibility.

  • Remove Python 3.5 compatibility.

  • Remove rfc6266-parser dependency.

2.0.1 - 2019-01-09

  • Reformat source code with black.

  • Remove testing import from package code.

2.0.0 - 2019-01-07

  • Update documentation (kotti-cookiecutter is the new scaffolding template). See

  • Require pytest >= 4.1.0, use request.node.get_closest_marker instead of deprecated request.keywords.

2.0.0b2 - 2018-04-04

  • Fix CSRF issue in @@share view (#551).

2.0.0b1 - 2018-03-19

  • Remove links to the demo site, which has been down for too long.

2.0.0a1 - 2018-02-22

This is a alpha release. Blindly upgrading your production environments will make the universe collapse!

Backward Incompatibilities

  • Python 3 compatibility

    Kotti now runs on Python >= 3.5.

    Python 2.x support was dropped entirely and won’t come back until somebody implements it or is willing to pay for it.

  • Everything marked as deprecated in Kotti 1.x was removed.

  • Scaffolding support via pcreate was dropped as it’s deprecated by Pyramid now. An alternate solution (cookiecutter template) might become available again in the future.

New Features

  • Python 3 compatibility

  • Extensive testing and code analysis on Circle CI, Travis CI and Scrutinizer.


  • Avoid deprecation warning

1.3.2 - 2018-04-04

This release fixes a CSRF (Cross Site Request Forgery) security vulnerablity which was reported in #551. You should upgrade your installations ASAP.

1.3.1 - 2018-01-17

  • When rendering slot views, use request.blank() to create the request. This is the proper behaviour, in tune with customizing kotti.request_factory. Also added blank() method to kotti.testing.DummyRequest.

  • When authenticated, show workflow state in the edit bar. Before it was shown only if the ‘edit’ permission was available.

  • Optimize the File edit form: don’t load initial file data to session data and don’t rewrite the file data after saving the form if that data has not been changed through the edit form.

  • Bugfix: when showing addable content in the menu, check if the factory has a defined add_view. This avoids a hard crash with, for example, a content type derived from Content that has no add_view defined.

  • Added nav-bar slot to edit/, edit-bar and nav-bar slots to view/

  • Bugfix: Simplify 404 page, no longer crash when authenticated

  • Change: simplify kotti.util.LinkBase.selected(): use request.view_name instead of deriving the view name from request.url. Also, consider the View editor bar entry as selected even when the url doesn’t end with a slash ‘/’

  • Feature: add Czech translation.

  • remove pytest-warnings from test dependencies (already integrated in modern pytest versions)

1.3.0 - 2016-10-10

Breaking Changes

  • Upgrade to repoze.workflow==1.0b. If your application has a custom ``workflow.zcml``, it needs a little modification: ``state`` and ``transition`` titles are no longer ``key`` nodes, but attributes on the respective ``state`` or ``transition`` nodes. See Kotti’s ``workflow.zcml`` for an example.

Features and Fixes

  • Add a fallback in when creation_date or modification_date is None.

  • Transform workflow state title to TranslationStrings without eval and deprecate it.

  • Replace some Python 2 only code with equivalents that also support Python 3.

  • Use generic SQLAlchemy type Text as base type for JsonType. This allows SQLAlchemy to map Text type to the most suitable type available on given database system. Previously used TEXT type is not available in Oracle database. In case of existing installation of Kotti with database system, for which SQLAlchemy maps generic Text type to type different than TEXT it’s necessary to either convert existing columns “nodes._acl” and “nodes.annotations” to that type or configure SQLAlchemy to map generic Text type to existing type of these two columns. For example of how to do this please see For all database systems for which SQLAlchemy provides dialects except Oracle (Firebird, Microsoft SQL Server, MySQL, Postgres, SQLite, Sybase) there’s no need to do anything.

  • We use PEP 440 normalized form for the project’s version thus current “1.3.0-alpha.5-dev” became “1.3.0a5.dev0”.

  • Upgrade tests to zope.testbrowser>=5.0.0. This removes the mechanize and wsgi_intercept dependencies and thus the last blocker for Python 3 compatibility.

  • Move pytest config from setup.cfg to new pytest.ini. This prevents a deprecation warning with pytest>=3.0.

  • Rename kotti.testing.TestingRootFactory to kotti.testing.RootFactory to prevent another deprecation warning with pytest>=3.0.

1.3.0-alpha.4 - 2015-01-15

This is a alpha release. Blindly upgrading your production environments will make the universe collapse!

  • Add a kotti.depot_replace_wsgi_file_wrapper option to replace the WSGI file wrapper with pyramid.response.FileIter for problematic environments.

1.3.0-alpha.3 - 2016-01-11

This is a alpha release. Blindly upgrading your production environments will make the universe collapse!

  • Bugfix: don’t try to get api.root via the lineage if not in a location aware context (for example 404 view). Return the site root instead.

1.3.0-alpha.2 - 2016-01-05

This is a alpha release. Blindly upgrading your production environments will make the universe collapse!

  • Add a custom traverser, which gets all nodes in a single DB query. For deeply nested trees this results in drastic performance improvements. See for details.

  • Bugfix: copy and paste of file nodes wouldn’t create a new depot file, but instead lead to multiple references to a single file which would cause undesired results when one of them was deleted later.

  • Bugfix: local ‘role:owner’ was not set when a new node was created by copy and paste.

  • Bugfix: could fail under unclear conditions (at least under Python 2.6 with SQLite).

  • Get rid of more browser doctests (converted to webtest).

1.3.0-alpha.1 - 2015-12-22

This is a alpha release. Blindly upgrading your production environments will make the universe collapse!

  • Completely revised Depot integration. See for details.

  • Make kotti.resources.SaveDataMixin more versatile in that it now supports a data_filters attribute (or even a completely overridden data attribute) on subclasses. For an example for what this is useful, see the new kotti_image package’s readme and the Depot documentation (

    These changes require a database migration.

    A migration script is included, which can be executed by running kotti-migrate <your.ini> upgrade_all. However, this script will fail if you subclassed from kotti.resources.Image in your application. It also doesn’t cover custom classes inherited from kotti.resources.File (other than Kotti’s Image). Migration of those can be performed easily, by copying the code from the included migration step to your package’s migration environment and adjust it to your needs.

  • Move all image related code to the new kotti_image add on package. All classes and functions are imported into their former place, so that code that imports from there will still be working.

  • Fix broken upload type selector.

  • Create RFC6266 compliant content disposition headers for non-ASCII filenames.

  • Add request.uploaded_file_response method.

1.2.4 - 2015-11-26

  • Fix broken packaging of 1.2.3. Sorry for the inconvenience!

1.2.3 - 2015-11-26

  • Add Kotti logo and icon to static assets.

  • Use Kotti logo as favicon.

  • Move favicon definition to separate template to make it easily overridable.

  • Fix permission check in kotti.views.util.nodes_tree.

1.2.2 - 2015-10-28

  • Add simple, default not found view.

  • In workflow-dropdown replace hard-coded permission check with individual permission checks for each existing transition.

  • Upgrade requirements.

1.2.1 - 2015-10-07

  • Outfactor the code that runs after successful authentication into a configurable kotti.login_success_callback function.

  • Outfactor the code that runs after a valid password reset request into a configurable kotti.password_reset_callback function.

  • Support principal search on non string attributes.

  • Support principal searches matching all arguments (i.e. using the and operator, or is still the default).

  • Support optional –rev with kotti-migrate upgrade.

1.2.0 - 2015-09-27

  • Greatly reduce the number of queries that are sent to the DB: - Add caching for the root node. - Use eager / joined loading for local_groups. - Don’t query principals for roles

  • Add “missing” foreign key indices (with corresponding migration step).

  • Add a kotti.modification_date_excludes configuration option. It takes a list of attributes in dotted name notation that should not trigger an update of modification_date on change. Defaults to kotti.resources.Node.position.

  • Don’t try to set a caching header from the NewRequest handler when Pyramid’s tweens didn’t follow the usual chain of calls. This fixes compatibility with bowerstatic.

  • Don’t assume renderer_name exists in a rendering event (ex. BeforeRender). The official docstring of pyramid.interfaces.IRenderer is a bit ambigous in regards to what the system parameter should include when a renderer gets called. This fixes compatibility with pyramid_layout.

  • Add a kotti.modification_date_excludes configuration option. It takes a list of attributes in dotted name notation that should not trigger an update of modification_date on change. Defaults to kotti.resources.Node.position.

1.1.5 - 2015-09-04

  • Fix migration error on MySQL.

  • Only wrap methods that do exist on the wrapped type (in kotti.sqla.MutationList / kotti.sqla.MutationDict). This fixes an error that occurs when MutationLists are exposed to the UI via colander.SequenceSchema.

  • Upgrade requirements to latest versions (filedepot, waitress).

1.1.4 - 2015-06-27

  • Add compatibility with SQLAlchemy 1.0. Also require SQLAlchemy 1.0.6 now.

  • Ignore HTTPForbidden exceptions during slot rendering

1.1.3 - 2015-06-17

  • Fix a bug in kotti-migrate that prevented initial migration steps from being run successfully.

  • Require kotti_tinymce 0.5.3.

1.1.2 - 2015-06-12

  • Enlarge column sizes for name, path and title (see #427). Upgrading from any version older than 1.1.2 requires you to run a migration script on your database. To run the migration, call:

    $ bin/kotti-migrate <myconfig.ini> upgrade
  • Add length validator for title (fix partially #404). See #428

  • Remove 40 chars max length constraint for the html segment name (Kotti.util.title_to_name). See #428

  • Update italian translation

  • Update documentation

  • Add an add_permission attribute to kotti.resources.TypeInfo with a default value of add. See #436

  • Add a “cancel” button to the delete node view.

1.1.1 2015-05-11

  • Update scaffold’s README file. See #417.

  • Fix broken multifile upload. See #425.

1.1.0 2015-04-16

  • Separate the default actions to a kotti.resources.default_actions variable, to allows easier customization of default actions of all content types. This is a LinkParent, you can append new kotti.util.Link objects to its children.

  • Add target option to kotti.util.Link. See #405.

  • Add sanitizers. See docs/development/advanced/sanitizers and kotti.sanitizers for details. This fixes #296.

  • Added new document on how to customize the edit interface. See docs/development/advanced/add-to-edit-interface.

  • Make it easier to customize default actions by separating them to a new kotti.resources.default_actions variable. Before, to customize them, you’d have to change Content.type_info.edit_links[3].children, now you can mutate default_actions directly. See docs/development/advanced/add-to-edit-interface for details.

  • Upgrade WebOb, html2text, pyramid and xlwt to their latest stable versions.

1.1.0-alpha.1 - 2015-03-19

  • Allow moving File and Image blob data from the database to configurable storages. To achieve this we use filedepot, a third-party library with several plugin storages already built in. See docs/developing/advanced/blobs.rst for details on what this brings. Upgrading from any version older then 1.1.0 requires you to run a migration script on your database. To run the migration, call:

    $ bin/kotti-migrate <myconfig.ini> upgrade

    Please note that, before running the migration, you should take the time to read the documentation and configure your desired storage scheme.

  • Allow storing blob data in the database using DBStoredFile and DBFileStorage, a database centered storage plugin for filedepot. This storage is the default storage for blob data, unless configured otherwise.

  • Added a script to migrate blob data between depot storages. See docs/developing/advanced/blobs.rst for details on how to use it.

  • Simplify serving blob data by using kotti.views.file.UploadedFileResponse, which also streams data. Please note that the default DBStoredFile still needs to load its entire data in memory, to benefit from this feature you should configure another default depot storage.

  • Added three new test fixtures: mock_filedepot, to be used in simple unit tests with no dependency on a database session, filedepot, which integrates with the dbsession fixture and no_filedepot, a fixture that can be used in developing tests for new file depot plugins - by preserving the depot configuration before and after running the test. NOTE: in order to test edit views with uploaded data in the request, you need to mixin the filedepot fixture.

  • Initialize pyramid.paster.logging for custom commands defined via kotti.util.command, to allow log message output for kotti sessions started via custom commands.

  • Remove unused kotti.js.

  • Remove deprecated kotti.views.slots.local_navigation and kotti.views.slots.includeme_local_navigation. Use kotti.views.navigation.local_navigation and kotti.views.navigation.includeme_local_navigation instead.

  • Upgrade plone.scale and SQLAlchemy to their latest stable versions.

  • Change height property on body’s widget (RichTextField) for improved usability. See #403.

1.0.0 - 2015-01-20

  • No changes.

1.0.0-alpha.4 - 2015-01-29

  • Added experimental Docker support. See #374.

  • Allow restricting add views to specific contexts. This allows third party developers to register new content types that are addable in specific type of contexts, by specifying context=SomeContentType in their add view registration and having type_info.addable=['SomeContentType'] in the type info.

  • For documents with duplicate titles that end in a number, append a counter instead of incrementing their number. Fixes #245

  • Update all requirements (except alembic) to their latest respective versions.

1.0.0-alpha.3 - 2015-01-13

  • Explicitly implement pyramid.interfaces.IRequest for kotti.request.Request. This allows add-on packages to use config.add_request_method (with reify) and config.add_request_property without breaking the interfaces provided by the request. Fixes #369

1.0.0-alpha.2 - 2015-01-01

  • Require kotti_tinymce==0.5.1. This fixes #365.

1.0.0-alpha - 2014-12-20

  • Add a new scaffold based on Pyramid’s pcreate. To run the tests for the scaffold, you must invoke py.test with the --runslow option. This is enabled by default on Travis.

  • kotti._resolve_dotted now return a resolved copy of the settings (instead of in place resolving as before).

  • Factor out DBMS specific patches and make them available to the test fixtures.

  • Add new fixtures that can also be used in add on tests:

    • custom_settings does nothing and is meant to be overridden in add on test suites. It allows injection of arbitrary key / values into the settings dict used in tests.

    • unresolved_settings is guaranteed to only contain unresolved string values (or lists therof).

    • settings is now guaranteed to be fully resolved.

    • webtest returns a webtest.TestApp instance with support for the @user marker. This should be used instead of browser doctests for functional tests.

  • Use RTD theme for documentation.

  • Use latest versions of all requirements. The only upgrade with notable differences is lingua (from 1.4 to 3.6.1). This completely changes lingua’s API. See docs/developing/basic/translations.rst for details on the greatly simplified new usage.

  • Remove code (incl. tests) that has been marked as deprecated since (at least) Kotti 0.8.

  • Revise UI to make better use of Bootstrap 3.

  • Allow parameters for move-child-position views to either be in request.POST or request.json_body.

  • Don’t use Pyramid code that is marked as deprecated:

    • replace with request.authenticated_userid.

  • Deprecate to be consistent with the corresponding deprecation in Pyramid 1.5. You should now use request.has_permission instead.

  • Make all values in Node.path end in /. This makes it consistent over all nodes (including root) and correspond to the values of request.resource_url. As a side effect querying becomes easier. However, this might need adjustments in your code if you were expecting the old path values before. A migration step for DB upgrades is included.

0.10b1 - 2014-07-11

  • Add a __json__ method to MutationList and MutationDict.

    This is to allow Pyramid’s serializer to just work.

0.10a4 - 2014-06-19

  • Upgrade Pyramid to version 1.5.1.

0.10a3 - 2014-06-11

  • Upgrade SQLAlchemy and alembic dependencies from 0.8.2 and 0.5.0 to 0.9.4 and 0.6.5 respectively.

  • Do not flush within Node.path event handlers. We would otherwise trigger object handlers with funny object states.

  • Fix bug with Node.path where we attach a Node instance to a parent that has been loaded from the database, but its parents have not been loaded yet.

  • Fix deprecation warnings with regard to Pyramid’s custom_view_predicates and set_request_property. Also deprecate kotti.views.util.is_root.

0.10a2 - 2014-06-05

  • Add Node.path column. This allows queries based on path, so it’s much easier just to find all children, grandchildren etc. of a given node:

  • Adds session attribute to the request attributes to copy to the slot view request.


  • Upgrading from 0.9.2 to 0.10 requires you to run a migration script on your database. To run the migration, call:

    $ bin/kotti-migrate <myconfig.ini> upgrade

    Make sure you backup your database before running the migration!

0.10a1 - 2014-05-19

  • Kotti is now based on Bootstrap 3 (and therefore Deform 2).


    If you only use Kotti’s default UI, chances are good that your application will continue to work well unchanged. Kotti’s API is mostly unchanged and fully backward compatible though.

  • Rework implementation of ‘kotti.util.Link’ (‘ViewLink’) to be more flexible.

    There’s now proper support for nesting ‘edit_links’, so that the special ‘action_links’ list is no longer necessary. Links now also make better use of templates for rendering, and are probably easier to customize overall.

  • Added compatiblity for and now require Pyramid>=1.5. #273

  • In tests, turned settings and setup_app into fixtures to ease overriding.

  • Add kotti_context_url JS global variable. For more details on why this is needed see:

  • Adds delete permission needed for ‘delete’ and ‘delete_nodes’ views. The default workflow was updated in consequence. It allows to elaborate more fine grained workflows : for instance, create a role which can edit a content but not delete it.

    To make existent Kotti’s instances using default workflow compatibles and avoid users that have ‘editor’ role (and so far, whom have the possibility to edit and delete the content) to not be able to delete contents, it’s needed to reset workflow with “kotti-reset-workflow <application ini file>” command.

  • Fix #308: Unique name constraint issue during paste of a cut node.

0.9.2 - 2013-10-15

  • Fix #268: Convert None to colander.null in get_appstruct so that serialization doesn’t fail (needed due to recent changes in colander).

0.9.1 - 2013-09-25

  • Allow user admins to modify user passwords.

  • Require newer kotti_tinymce (source code editing was broken in 0.4).

0.9 - 2013-09-17

  • Add multi file content upload. You can now select several files from your local storage that you want to upload and chose what content nodes shall be created in your Kotti site. Currently files with MIME types of image/* can be uploaded and be created as either Image or File nodes, all other MIME types will be created as File. In future releases (or add-on products) this can be extended with additional converters allowing for example to upload HTML files and create Document nodes with the content of the title tag becoming the node’s title, the content of the body tag becoming the node’s body and so on.

  • Fix #253: Many translations weren’t included in the last release.

    ‘–use-fuzzy’ translations when running ‘compile_catalog’ adds back translations that were recently marked as fuzzy. (All translations that were marked as fuzzy in German were still accurate.)

  • Fix #252: Wrap templates where extract_messages failed with <tal:block>

  • Fix #249: TinyMCE translations work again.

0.9b2 - 2013-08-20

  • Fix #251: Broken comparison of NestedMutationDict and NestedMutationList.

  • Update kotti_tinymce to version 4.0.2.

  • Fix bug in kotti.views.content.FileEditForm to preserve file content while editing it.

0.9b1 - 2013-06-26

  • Add kotti.util.ViewLink.visible method for better control over whether a view link should be visible or not. This allows us to move formerly hardcoded action links defined in kotti.views.edit.actions into TypeInfo.action_links and thus make them configurable either globally or per content type.

  • will now check for with a request method set to ‘GET’ by default. It used to check for a view that matches the current request’s method.

    This fixes an issue where kotti.util.ViewLink.permitted would by mistake check for a ‘POST’ view when the current request was ‘POST’.

  • Add INavigationRoot interface and TemplateAPI.navigation_root property. The latter returns the first content node in the lineage that implements INavigationRoot or the root node if INavigationRoot is not implemented by any node in the lineage. Make the template use api.navigation_root instead of api.root. This allows third party add-ons to define content types that can reside somewhere in the content tree while still being the root for the navigation.

  • Move navigation related view code to new module kotti.views.navigation. Deprecate imports from the old locations.

  • Remove some code that has been deprecated in 0.6 or 0.7.

  • A view assigned to a slot can access the slot name where its rendered.

  • Add missing transaction.commit() in kotti-reset-workflow.

  • Fix bug in kotti.views.util.render_view where local roles weren’t respected correctly.

  • Add helper method kotti.message.send_email for sending general emails. These emails must follow a particular structure. Look at kotti:templates/ as an example.

0.9a2 - 2013-05-04

  • Fix #222: Use SQLAlchemy’s before_flush event for object events.

    We were using the wrong events previously. The problem with before_insert, before_update, and before_delete was that event handlers could not reliably call Session.add, Session.delete, and change mapped relationships. But only SQLAlchemy 0.8 started emitting a warning when that was done.

    Also deprecated ObjectAfterDelete because I don’t think it’s useful.

  • Remove the html5shim from the master templates and use the fanstatic package js.html5shiv instead.

  • A temporary fix for #187. Basically suppresses DetachedInstanceError.

  • Add decorator. See the also updated docs on that topic / module for details.

0.9a1 - 2013-03-12

  • Fix ordering on how include_me functions are loaded. This puts Kotti’s own and Kotti add-on search paths in front of deform_bootstrap’s.

  • Add image thumbs with preview popovers to @@contents view.

  • Add drag’n’drop ordering support to @@contents view.

  • Add “toggle all” checkbox to @@contents view.

  • Add contents path bar to @@contents view.

0.8 - 2013-03-12

  • No changes.

0.8b2 - 2013-02-08

  • Fix Kotti’s tests to no longer trigger deprecation warnings. Kotti’s funcargs need to be better documented still, see #141.

  • Add a fanstatic.Group ‘tagit’ and need() it in the defered widget. This is needed to make the tags widget render correctly with a theme package enabled until the defered widget is replaced by a widget class that declares its requirements in the usual deform style.

  • Transform setup_users, setup_user and prefs views into class-based views. Add a little text at subsection Security on developer manual mentioning those views.

0.8b1 - 2012-12-30

  • No changes

0.8a2 - 2012-12-15

  • Remove test related dependencies on requirements.txt. So now we need to run python dev to get testing dependencies.

  • Update packages versions on requirements.txt for latest working versions.

  • Added a tags display in views for documents, files, folders, and images, where they show up as a horizontal list between description and body.

  • Modified general search to include simple tags searching. The default search in Kotti works on a simple search term matching basis. Tags searching is added here in a simple fashion also, such that you can only search for one tag at a time, but partial matches work: searching for ‘foo’ finds content tagged ‘foo bar’. You can also search on single tags by clicking an individual tag in the tags display of an item. More sophisticated tags searching, just as for general search, is left to dedicated add-ons.

0.8a1 - 2012-11-13

  • Make language-dependent URL normalization the default. (How to do this used to be a cookbook entry.)

  • Cleanup node edit actions and use decorated view classes.

  • Add contents view with actions for multiple items.

  • Add children_with_permission method to ContainerMixin.

  • Add UI for default_view selection.

  • Deprecate ‘kotti.views.edit.generic_add’ and ‘generic_edit’. Just use class-based forms instead.

0.7.2 - 2012-10-02

  • Improve installation instructions. Now uses tagged requirements.txt file.

  • Added event request POST vars to the request for the slot viewlet.

  • Added IFile and IImage interfaces to allow for file and image subclasses to reuse the same view (registrations).

0.7.1 - 2012-08-30

  • Add deletion of users to the users management.

  • Fix tag support for files and images.

  • Upgrade to Twitter Bootstrap 2.1

    • remove lots of CSS that is no longer needed

    • fix responsive layout that was broken on some phone size screen resolutions

  • Add “Site Setup” submenu / remove @@setup view.

0.7 - 2012-08-16

  • Fix critical issue with migrations where version number would not be persisted in the Alembic versions table.

0.7rc1 - 2012-08-14

  • No changes.

0.7a6 - 2012-08-07

  • Fix a bug with connections in the migration script. This would previously cause Postgres to deadlock when calling kotti-migrate.

0.7a5 - 2012-08-07

  • Add workflow support based on repoze.workflow. A simple workflow is included in workflow.zcml and is active by default. Use kotti.use_workflow = 0 to deactivate. The workflow support adds a drop-down that allows users with state_change permission to modify the workflow state.

  • Change the default layout

    Kotti’s new default look is now even closer to the Bootstrap documentation, with the main nav bar at the very top and the edit bar right below.

    Upgrade note: if you have a customized main_template and want to use the recent changes in that template, you need to swap positions of and api.render_template calls and remove the call from the main_template (it’s now called from within Everything else is completely optional.

  • Add migrations via Alembic. A new script kotti-migrate helps with managing database upgrades of Kotti and Kotti add-ons. Run kotti-migrate <your.ini> upgrade to upgrade the Kotti database to the latest version.

    Add-on authors should see the kotti.migrate module’s docstring for more details.

  • Make Document.body searchable (and therefore the search feature actually useful for the first time).

  • Add a “minify” command to compress CSS and JS resources.

    To use it run:

    python dev
    python minify

    The minify command assumes, that all resources are in kotti/static/. YUI compressor is used for compression and will be automatically installed when running python dev. However, you still need a JVM on your development machine to be able to use the minify command.

  • Fix settings: only values for kotti* keys should be converted to unicode strings.

  • Fix #89: Validate email address for uniqueness when user changes it.

  • Fix #91: Styling of search box.

  • Fix #104: Make fanstatic resources completely overridable.

  • Enabled deferred loading on column.


  • Upgrading from 0.6 to 0.7 requires you to run a migration script on your database. To run the migration, call:

    $ bin/kotti-migrate <myconfig.ini> upgrade

    Make sure you backup your database before running the migration!

  • Upgrading to 0.7 will initialize workfow state and permissions for all your content objects, unless you’ve overwritten kotti-use_workflow to not use a workflow (use 0) or a custom one.

    It is important that sites that have custom permissions, e.g. custom modifications to SITE_ACL, turn off workflow support prior to running the upgrade script.

0.7a4 - 2012-06-25

  • Add minified versions JS/CSS files.

  • Fix #88: logging in with email.

  • Update translations.

0.7a3 - 2012-06-15

  • Include kotti.tinymce which adds plug-ins for image and file upload and content linking to the TinyMCE rich text editor.

  • Slot renderers have been replaced by normal views (or viewlets). kotti.views.slots.register has been deprecated in favour of kotti.views.slots.assign_slot, which works similarly, but takes a view name of a registered view instead of a function for registration.

  • Switch to fanstatic for static resource management.

    Upgrade note: This requires changes to existing *.ini application configuration files. Concretely, you’ll need to add a filter:fanstatic section and a pipeline:main section and rename an existing app:main section to app:Kotti or the like. Take a look at Kotti’s own development.ini for an example.

  • Retire the undocumented kotti.resources.Setting class and table. kotti.get_settings will now return registry.settings straight, without looking for persistent overrides in the database.

  • Drop support for Pyramid<1.3, since we use pyramid.response.FileResponse, and kotti_tinymce uses pyramid.view.view_defaults.

  • Fix encoding error with non-ascii passwords.

0.7a2 - 2012-06-07

  • Do not allow inactive users to reset their password.

0.7a1 - 2012-06-01


  • Add a new ‘Image’ content type and image scaling, originally from the kotti_image_gallery add-on. See kotti.image_scales.* settings.

  • Add search and related setting kotti.search_content.

  • Add subscriber to set cache headers based on caching rules. See also related setting kotti.caching_policy_chooser.

  • Remove TinyMCE from the core.

  • Move email templates into page templates in kotti:templates/ and kotti:templates/ This is to make them easier to translate and customize. This deprecates kotti.message.send_set_password.

  • Add a ‘edit_inhead’ slot for stuff that goes into the edit interface’s head. ‘inhead’ is no longer be used in ‘edit/’.

  • For more details, see also


0.6.3 - 2012-05-08

  • Add tag support. All content objects now have tags. They can be added in the UI using the “jQuery UI Tag-it!” widget. See .

  • Fix a bug with file download performance.

0.6.2 - 2012-04-21

  • Links in Navigation view lead to node view. Added edit links to view the node’s edit form.

  • Hitting ‘Cancel’ now returns to the context node for add/edit views

0.6.1 - 2012-03-30

  • Added button to show/hide nodes from navigation in the order screen.

  • The ‘rename’ action now strips slashes out of names. Fixes #53.

  • Add Dutch translation.

  • Allow translation of TinyMCE’s UI (starting with deform 0.9.5)

  • Separated out testing dependencies. Run bin/python dev to install Kotti with extra dependencies for testing.

  • Deprecate ‘kotti.includes’ setting. Use the standard ‘pyramid.includes’ instead.

  • Setting ‘Node.__acl__’ to the empty list will now persist the empty list instead of setting ‘None’.

  • Let ‘pyramid_deform’ take care of configuring deform with translation dirs and search paths.

0.6.0 - 2012-03-22

  • Add Japanese translation.

  • Enforce lowercase user names and email with registration and login.

  • Moved SQLAlchemy related stuff from kotti.util into kotti.sqla.

  • You can also append to ‘Node.__acl__’ now in addition to setting the attribute.

0.6.0b3 - 2012-03-17

  • Have the automatic __tablename__ and polymorphic_identity for CamelCase class names use underscores, so a class ‘MyFancyDocument’ gets a table name of ‘my_fancy_documents’ and a type of ‘my_fancy_document’.

0.6.0b2 - 2012-03-16

  • Make the ‘item_type’ attribute of AddForm optional. Fixes #41.

  • kotti.util.title_to_name will now return a name with a maximum length of 40. Fixes #31.

0.6.0b1 - 2012-03-15

0.5.2 - 2012-03-10

  • A new ‘Actions’ menu makes copy, paste, delete and rename of items more accessible.

  • Add German translation.

  • Populators no longer need to call transaction.commit() themselves.

0.5.1 - 2012-02-27

  • Internationalize user interface. Add Portuguese as the first translation.

  • A new ‘Add’ menu in the editor toolbar allows for a more intuitive adding of items in the CMS.

  • Refine Node.copy. No longer copy over local roles per default.

0.5.0 - 2012-02-15

  • Move Kotti’s default user interface to use Twitter Bootstrap 2.

  • Add a new ‘File’ content type.

  • Add CSRF protection to some forms.

  • Remove Kotti’s FormController in favor of using pyramid_deform.

  • Use plone.i18n to normalize titles to URL parts.

  • Add a separate navigation screen that replaces the former intelligent breadcrumbs menu.

  • Use pyramid_beaker as the default session factory.

  • Make kotti.messages.send_set_password a bit more flexible.

0.4.5 - 2012-01-19

  • Add ‘’ which may be used instead of ‘’.

    The difference is that Kotti’s version will set the “authorization context” to be the context that you pass to ‘has_permission’. The effect is that ‘list_groups’ will return a more correct list of local roles, i.e. the groups in the given context instead of ‘request.context’.

  • Add a template (‘’) for when user is logged in but still getting HTTPForbidden.

0.4.4 - 2012-01-05

  • The “Forbidden View” will no longer redirect clients that don’t accept ‘text/html’ to the login form.

  • Fix bug with ‘kotti.site_title’ setting.

0.4.3 - 2011-12-22

  • Add ‘kotti.root_factory’ setting which allows the override Kotti’s default Pyramid root factory. Also, make master templates more robust so that a minimal root with ‘__parent__’ and ‘__name__’ can be rendered.

  • The ‘kotti.tests’ was factored out. Tests should now import from ‘kotti.testing’.

0.4.2 - 2011-12-20

  • More convenient overrides for add-on packages by better use of ‘config.commit()’.

0.4.1 - 2011-12-20

  • Modularize Kotti’s Paste App Factory ‘kotti.main’.

  • Allow explicit setting of tables that Kotti creates (‘kotti.use_tables’).

0.4.0 - 2011-12-14

  • Remove configuration variables ‘kotti.templates.*’ in favour of ‘kotti.asset_overrides’, which uses Pyramid asset specs and their overrides.

  • Remove ‘TemplateAPI.__getitem__’ and instead add ‘TemplateAPI.macro’ which has a similar but less ‘special’ API.

  • Factor snippets in ‘kotti/templates/’ out into their own templates. Use ‘api.render_template’ to render them instead of macros.

0.3.1 - 2011-12-09

  • Add ‘keys’ method to mutation dicts (see 0.3.0).

0.3.0 - 2011-11-30

  • Replace Node.__annotations__ in favor of an extended Node.annotations.

    Node.annotations will attempt to not only recognize changes to subobjects of type dict, it will also handle list objects transparently. That is, changing arbitrary JSON structures should just work with regard to calling node.annotations.changed() when the structure was changed.

0.2.10 - 2011-11-22

  • ‘api.format_datetime’ now also accepts a timestamp in addition to datetime.

0.2.9 - 2011-11-21

  • Remove in favour of using ‘setuptools-git’.

0.2.8 - 2011-11-21

0.2.7 - 2011-11-20

  • Add ‘PasteScript’ dependency.

  • Fix #11 where ‘python test’ would look into a hard-coded ‘bin’ directory.

  • Structural analysis documentation. (Unfinished; in ‘analysis’ directory during development. Will be moved to main docs when finished.)

0.2.6 - 2011-11-17

  • Add Node.__annotations__ convenience attribute.

    Node.__annotations__ will wrap the annotations dict in such a way that both item and attribute access are possible. It’ll also record changes to dicts inside dicts and mark the parent __annotations__ attribute as dirty.

  • Add a welcome page.

  • Delete the demo added in version 0.2.4.

0.2.5 - 2011-11-14

  • Add ‘TemplateAPI.render_template’; allow templates to be rendered conveniently from templates.

0.2.4 - 2011-11-13

  • Adjust for Pyramid 1.2: INI file, pyramid_tm, Wsgiref server, pcreate and pserve. (MO)

  • Add Kotti Demo source and documentation.

0.2.3 - 2011-10-28

  • Node.__getitem__ will now also accept a tuple as key.

    folder['1', '2'] is the same as folder['1']['2'], just more efficient.

  • Added a new cache decorator based on repoze.lru.

0.2.2 - 2011-10-10

  • Change the function signature of kotti.authn_policy_factory, kotti.authz_policy_factory and kotti.session_factory to include all settings from the configuration file.

0.2.1 - 2011-09-29

  • Minor changes to events setup code to ease usage in tests.

0.2 - 2011-09-16

  • No changes.

0.2a2 - 2011-09-05

  • Fix templates to be compatible with Chameleon 2. Also, require Chameleon>=2.

  • Require pyramid>=1.2. Also, enable pyramid_debugtoolbar for development.ini profile.

0.2a1 - 2011-08-29

  • Improve database schema for Nodes. Split Node class into Node and Content.

    This change is backward incompatible in that existing content types in your code will need to subclass Content instead of Node. The example in the docs has been updated. Also, the underlying database schema has changed.

  • Improve user database hashing and local roles storage.

  • Compatibility fix for Pyramid 1.2.

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