[pull] main from python:main

Doc/library/concurrent.futures.rst

@@ -101,10 +101,10 @@ Executor Objects
       executor has started running will be completed prior to this method
       returning. The remaining futures are cancelled.
 
-      You can avoid having to call this method explicitly if you use the
-      :keyword:`with` statement, which will shutdown the :class:`Executor`
-      (waiting as if :meth:`Executor.shutdown` were called with *wait* set to
-      ``True``)::
+      You can avoid having to call this method explicitly if you use the executor
+      as a :term:`context manager` via the  :keyword:`with` statement, which
+      will shutdown the :class:`Executor` (waiting as if :meth:`Executor.shutdown`
+      were called with *wait* set to ``True``)::
 
          import shutil
          with ThreadPoolExecutor(max_workers=4) as e:

Doc/library/constants.rst

@@ -97,15 +97,17 @@ should not be used in programs.
           exit(code=None)
 
    Objects that when printed, print a message like "Use quit() or Ctrl-D
-   (i.e. EOF) to exit", and when called, raise :exc:`SystemExit` with the
+   (i.e. EOF) to exit", and when accessed directly in the interactive
+   interpreter or called as functions, raise :exc:`SystemExit` with the
    specified exit code.
 
 .. data:: help
    :noindex:
 
    Object that when printed, prints the message "Type help() for interactive
-   help, or help(object) for help about object.", and when called,
-   acts as described :func:`elsewhere <help>`.
+   help, or help(object) for help about object.", and when accessed directly
+   in the interactive interpreter, invokes the built-in help system
+   (see :func:`help`).
 
 .. data:: copyright
           credits

Doc/library/pdb.rst

@@ -75,6 +75,7 @@ The debugger's prompt is ``(Pdb)``, which is the indicator that you are in debug
    arguments of the ``p`` command.
 
 
+.. _pdb-cli:
 .. program:: pdb
 
 You can also invoke :mod:`pdb` from the command line to debug other scripts.  For