https://github.com/python/cpython/commit/92be979f64cbc12a32dc391d66caf4398fd24763
commit: 92be979f64cbc12a32dc391d66caf4398fd24763
branch: main
author: Bar Harel <[email protected]>
committer: kumaraditya303 <[email protected]>
date: 2025-08-18T17:48:54+05:30
summary:
gh-127859: Fixed documentation for call_later and call_at for early wakeup in
asyncio (#137859)
files:
M Doc/library/asyncio-eventloop.rst
diff --git a/Doc/library/asyncio-eventloop.rst
b/Doc/library/asyncio-eventloop.rst
index 9561c40776f01c..0ccc7a2b4482ec 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -304,6 +304,12 @@ clocks to track time.
custom :class:`contextvars.Context` for the *callback* to run in.
The current context is used when no *context* is provided.
+ .. note::
+
+ For performance, callbacks scheduled with :meth:`loop.call_later`
+ may run up to one clock-resolution early (see
+ ``time.get_clock_info('monotonic').resolution``).
+
.. versionchanged:: 3.7
The *context* keyword-only parameter was added. See :pep:`567`
for more details.
@@ -324,6 +330,12 @@ clocks to track time.
An instance of :class:`asyncio.TimerHandle` is returned which can
be used to cancel the callback.
+ .. note::
+
+ For performance, callbacks scheduled with :meth:`loop.call_at`
+ may run up to one clock-resolution early (see
+ ``time.get_clock_info('monotonic').resolution``).
+
.. versionchanged:: 3.7
The *context* keyword-only parameter was added. See :pep:`567`
for more details.
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