fix: handle TypeError in lookup_class_name for Diagram (#1072) (#1317)

When inspect.getmembers() encounters modules with objects that have
non-standard __bases__ attributes (like _ClassNamespace from typing
internals), it raises TypeError. This caused dj.Diagram(schema) to
fail intermittently depending on what modules were imported.

Now catches TypeError in addition to ImportError, allowing the search
to continue by skipping problematic modules.

Fixes #1072

Co-authored-by: Claude Opus 4.5 <[email protected]>

Author: dimitri-yatsenko

src/datajoint/table.py

@@ -1307,8 +1307,8 @@ def lookup_class_name(name, context, depth=3):
                                 depth=node["depth"] - 1,
                             )
                         )
-                    except ImportError:
-                        pass  # could not import, so do not attempt
+                    except (ImportError, TypeError):
+                        pass  # could not inspect module members, skip
     return None