bpo-41833: threading.Thread now uses the target name (GH-22357)

1 files changed, 7 insertions, 2 deletions

diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst
index 7fcf93d..7eb12fe 100644
--- a/Doc/library/threading.rst
+++ b/Doc/library/threading.rst
@@ -264,8 +264,10 @@ since it is impossible to detect the termination of alien threads.
    *target* is the callable object to be invoked by the :meth:`run` method.
    Defaults to ``None``, meaning nothing is called.
 
-   *name* is the thread name.  By default, a unique name is constructed of the
-   form "Thread-*N*" where *N* is a small decimal number.
+   *name* is the thread name. By default, a unique name is constructed
+   of the form "Thread-*N*" where *N* is a small decimal number,
+   or "Thread-*N* (target)" where "target" is ``target.__name__`` if the
+   *target* argument is specified.
 
    *args* is the argument tuple for the target invocation.  Defaults to ``()``.
 
@@ -280,6 +282,9 @@ since it is impossible to detect the termination of alien threads.
    base class constructor (``Thread.__init__()``) before doing anything else to
    the thread.
 
+   .. versionchanged:: 3.10
+      Use the *target* name if *name* argument is omitted.
+
    .. versionchanged:: 3.3
       Added the *daemon* argument.