[zope2-tracker] [Bug 450426] [NEW] HelpSys no longer works with zope.interface.Interface

LeoRochael leorochael at gmail.com
Tue Oct 13 11:03:45 EDT 2009

Public bug reported:

The Zope2 HelpSys used to work with zope.interface.Interface since the
latter used to have a deprecated "isImplementedByInstancesOf".

The patch below restores support for zope.interface.Interface at the
expense of the old "scarecrow" Interface.Interface, which is no longer

I need this patch on the 2.12 branch to be able to migrate an old
codebase that uses HelpSys extensively for advanced users documentation.

I can do the work of applying it on 2.12 and trunk.

** Affects: zope2
     Importance: Undecided
         Status: New

HelpSys no longer works with zope.interface.Interface
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