plone.browserlayer 4.0.0

Basic usage

To use this feature, you should:

• declare plone.browserlayer as a dependency, e.g. in setup.py:

  install_requires=[
        'plone.browserlayer',
    ],

• ensure that its ZCML is loaded, e.g. with an include from your own package:

  <include package="plone.browserlayer" />

• create a layer marker interface unique to your product:

  from zope.interface import Interface
  class IMyProductLayer(Interface):
      """A layer specific to my product
      """

• register this with GenericSetup, in a browserlayer.xml file:

  <layers>
      <layer name="my.product"
             interface="my.product.interfaces.IMyProductLayer" />
  </layers>

• register visual components in ZCML for this layer, e.g.:

  <browser:page
      name="my-view"
      for="*"
      layer=".interfaces.IMyProductLayer"
      permission="zope.Public"
      template="my-view.pt"
      />

4.0.0 (2026-05-16)

Internal:

• Update configuration files. [plone devs]

4.0.0a2 (2025-11-29)

Bug fixes:

• Fix removal of pkg_resources namespace. @davisagli

• Move to src-layout. @mauritsvanrees

4.0.0a1 (2025-11-26)

Breaking changes:

• Replace pkg_resources namespace with PEP 420 native namespace. Support only Plone 6.2 and Python 3.10+. (#3928)

3.0.2 (2023-10-07)

Internal:

• Update configuration files. [plone devs] (cfffba8c)

3.0.1 (2023-03-14)

Internal:

• Update configuration files. [plone devs] (ba6bcc29)

3.0.0 (2022-11-14)

Breaking changes:

• Drop support for Plone 5 and Python 2. [maurits] (#600)

Bug fixes:

• Fix ‘KeyError: file’ in browser tests on Python 3.11. [maurits] (#3663)

2.2.4 (2020-09-07)

Bug fixes:

• Fixed deprecation warning for zope.component.interfaces.IComponentRegistry. [maurits] (#3130)

2.2.3 (2020-04-20)

Bug fixes:

• Minor packaging updates. (#1)

2.2.2 (2018-09-28)

Bug fixes:

• Fix tests for py3 [pbauer]

2.2.1 (2018-02-02)

Bug fixes:

• Add Python 2 / 3 compatibility [pbauer]

2.2.0 (2017-02-12)

Bug fixes:

• Fixed test when using Zope 4. [maurits]

2.1.7 (2016-11-01)

Fixes:

• Removed ZopeTestCase. We were importing from it but not using it… [ivanteoh, maurits]

2.1.6 (2015-10-27)

Fixes:

• Minor cleanup in order to follow plone code style conventions. [jensens]

2.1.5 (2015-04-29)

• Rerelease for clarity, because 2.1.4 got released twice. [maurits]

2.1.4 (2015-04-29)

• Move tests to plone.app.testing. [sdelcourt,timo]

2.1.3 (2014-02-25)

• Fix tests with diazo. [davisagli]

2.1.2 (2012-10-03)

• Add support for calling many times remove in export (ie:even when no corresponding layer is registered, remove option should not throw exception). [toutpt]

2.1.1 (2011-11-24)

• Added uninstall support to browserlayer.xml with the ‘remove’ option. [maurits]

• GS export xml is now repeatable. Before two consecutive exports could yield differently ordered results. [do3cc]

2.1 - 2011-05-12

• Update import of BeforeTraverseEvent to come from zope.traversing instead of zope.app.publication. [davisagli]

• Add MANIFEST.in [WouterVH]

2.0.1 - 2010-09-21

• Make sure the layers don’t get applied twice if the site is traversed more than once (such as in a vhosting URL). [davisagli]

2.0 - 2010-07-18

• Update license to GPL version 2 only. [hannosch]

• Package metadata cleanup, require Zope2 distribution. [hannosch]

1.0.1 - 2009-09-09

• Be more robust against broken layer registrations. These can occur when packages with registered layers are removed. [wichert]

• Clarified license and copyright. [hannosch]

• Register ourselves for the more generic ISiteRoot from CMFCore and not IPloneSiteRoot. [hannosch]

• Declare test dependencies in an extra. [hannosch]

• Specify package dependencies. [hannosch]

1.0.0 - 2008-04-20

• Unchanged from 1.0rc4

1.0rc4 - 2008-04-13

• Register the GenericSetup import and export steps using zcml. This means you will no longer need to install this package manually. [wichert]

1.0rc3 - 2008-03-09

• Include README.txt and HISTORY.txt in the package’s long description. [wichert]

• Add metadata.xml to the GenericSetup profile. This fixes a deprecation warning for Plone 3.1 and later. [wichert]

1.0b1 - 2007-09-23

• Initial package structure. [zopeskel]