gh-103791: Make contextlib.suppress also act on exceptions within an ExceptionGroup (#103792)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/Lib/contextlib.py b/Lib/contextlib.py
index 30d9ac2..b5acbcb 100644
--- a/Lib/contextlib.py
+++ b/Lib/contextlib.py
@@ -441,7 +441,16 @@ class suppress(AbstractContextManager):
         # exactly reproduce the limitations of the CPython interpreter.
         #
         # See http://bugs.python.org/issue12029 for more details
-        return exctype is not None and issubclass(exctype, self._exceptions)
+        if exctype is None:
+            return
+        if issubclass(exctype, self._exceptions):
+            return True
+        if issubclass(exctype, ExceptionGroup):
+            match, rest = excinst.split(self._exceptions)
+            if rest is None:
+                return True
+            raise rest
+        return False
 
 
 class _BaseExitStack: