warnings.warn_explicit() did not have the proper TypeErrors in place to prevent
bus errors or SystemError being raised. As a side effect of fixing this, a bad
DECREF that could be triggered when 'message' and 'category' were both None was
fixed.
Closes issue 3211. Thanks JP Calderone for the bug report.
diff --git a/Misc/NEWS b/Misc/NEWS
index e91b696..69a9e38 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -25,6 +25,11 @@
Core and Builtins
-----------------
+- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
+ argument being anything other than a dict or None. Also fixed a bug in error
+ handling when 'message' and 'category' were both set to None, triggering a
+ bus error.
+
- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
holds the last (strong) reference to its referent.