skip tests using mcp on Python 3.9

Author: aaron-ang

tests/conftest.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import sys
+
 import pytest
 
 from agents.models import _openai_shared
@@ -59,3 +61,10 @@ def failing_version(*args, **kwargs):
     monkeypatch.setattr(OpenAIResponsesModel, "stream_response", failing_version)
     monkeypatch.setattr(OpenAIChatCompletionsModel, "get_response", failing_version)
     monkeypatch.setattr(OpenAIChatCompletionsModel, "stream_response", failing_version)
+
+
+# Skip tests that use mcp on Python 3.9
+def pytest_ignore_collect(collection_path, config):
+    if sys.version_info[:2] == (3, 9):
+        if str(collection_path).endswith("test_visualization.py"):
+            return True