Merge pull request #267 from plone/266-fix-object-provides

Make object_provides work also on tuple

docs/CHANGES.rst

@@ -4,6 +4,9 @@ Changelog
 1.3.4 (unreleased)
 ------------------
 
+- plone.api.content.find: object_provides arguments accepts tuples.
+  Fixes #266.
+  [ale-rt]
 - Fixed plone.api.content.create in Plone 5. Refs 160.
   [jaroel]
 

src/plone/api/content.py

@@ -549,12 +549,11 @@ def find(context=None, depth=None, **kwargs):
     # Convert interfaces to their identifiers
     object_provides = query.get('object_provides', [])
     if object_provides:
-        if not isinstance(object_provides, list):
+        if not isinstance(object_provides, (list, tuple)):
             object_provides = [object_provides]
-        for k, v in enumerate(object_provides):
-            if not isinstance(v, basestring):
-                object_provides[k] = v.__identifier__
-        query['object_provides'] = object_provides
+        query['object_provides'] = [
+            getattr(x, '__identifier__', x) for x in object_provides
+        ]
 
     # Make sure we don't dump the whole catalog.
     catalog = portal.get_tool('portal_catalog')