deprecate asyncio.set_event_loop_policy

python · graingert · Oct 11, 2023 · Oct 11, 2023 · Oct 11, 2023 · Oct 11, 2023
commit a1fa65776c3f0cefc9a67a0463251029a2deb6bf
@@ -18,6 +18,7 @@
 import subprocess
 import sys
 import threading
+import warnings

 from . import format_helpers

@@ -787,6 +788,9 @@ def set_event_loop_policy(policy):
    """Set the current event loop policy.

    If policy is None, the default policy is restored."""
+    warnings._deprecated("set_event_loop_policy",
+                         "{name!r} is deprecated as of Python 3.13 and will be "
+                         "removed in Python {remove}.", remove=(3, 15))
    global _event_loop_policy
    if policy is not None and not isinstance(policy, AbstractEventLoopPolicy):
        raise TypeError(f"policy must be an instance of AbstractEventLoopPolicy or None, not '{type(policy).__name__}'")