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[Colin Watson <cjwatson@xxxxxxxxxxxxx>]

Colin Watson has proposed merging ~cjwatson/launchpad:py3-method-wrapper-checker into launchpad:master.

Commit message:
Set checker for method-wrapper

Requested reviews:
  Launchpad code reviewers (launchpad-reviewers)

For more details, see:
https://code.launchpad.net/~cjwatson/launchpad/+git/launchpad/+merge/397686

This works around https://github.com/zopefoundation/zope.security/issues/75, which caused a test failure in lib/lp/services/webapp/doc/webapp-publication.txt.
-- 
Your team Launchpad code reviewers is requested to review the proposed merge of ~cjwatson/launchpad:py3-method-wrapper-checker into launchpad:master.

diff --git a/lib/lp_sitecustomize.py b/lib/lp_sitecustomize.py
index 76702aa..a374bf3 100644
--- a/lib/lp_sitecustomize.py
+++ b/lib/lp_sitecustomize.py
@@ -189,6 +189,8 @@ def main(instance_name=None):
     # through actually using itertools.groupby.
     grouper = type(list(itertools.groupby([0]))[0][1])
     checker.BasicTypes[grouper] = checker._iteratorChecker
+    # Work around https://github.com/zopefoundation/zope.security/issues/75.
+    checker.BasicTypes[type(().__repr__)] = checker._callableChecker
 
     # XXX cjwatson 2020-11-20: Remove this once we upgrade to a version of
     # Breezy with