gh-155787: Harmonize parameter names in the time module documentation and docstrings

Use "seconds" and "time_tuple" in both the documentation and the
docstrings, and mark the optional arguments of ctime() and strptime()
as optional in the docstrings.

Author: serhiy-storchaka

Doc/library/time.rst

@@ -122,16 +122,17 @@ An explanation of some terminology and conventions is in order.
 Functions
 ---------
 
-.. function:: asctime([t])
+.. function:: asctime([time_tuple])
 
    Convert a tuple or :class:`struct_time` representing a time as returned by
    :func:`gmtime` or :func:`localtime` to a string of the following
    form: ``'Sun Jun 20 23:21:05 1993'``. The day field is two characters long
    and is space padded if the day is a single digit,
    e.g.: ``'Wed Jun  9 04:26:40 1993'``.
 
-   If *t* is not provided, the current time as returned by :func:`localtime`
-   is used. Locale information is not used by :func:`asctime`.
+   If *time_tuple* is not provided, the current time as returned by
+   :func:`localtime` is used. Locale information is not used by
+   :func:`asctime`.
 
    .. note::
 
@@ -214,16 +215,16 @@ Functions
    .. versionadded:: 3.7
 
 
-.. function:: ctime([secs])
+.. function:: ctime([seconds])
 
    Convert a time expressed in seconds since the epoch_ to a string of a form:
    ``'Sun Jun 20 23:21:05 1993'`` representing local time. The day field
    is two characters long and is space padded if the day is a single digit,
    e.g.: ``'Wed Jun  9 04:26:40 1993'``.
 
-   If *secs* is not provided or :const:`None`, the current time as
-   returned by :func:`.time` is used. ``ctime(secs)`` is equivalent to
-   ``asctime(localtime(secs))``. Locale information is not used by
+   If *seconds* is not provided or :const:`None`, the current time as
+   returned by :func:`.time` is used. ``ctime(seconds)`` is equivalent to
+   ``asctime(localtime(seconds))``. Locale information is not used by
    :func:`ctime`.
 
    .. versionchanged:: 3.15
@@ -255,10 +256,10 @@ Functions
    .. versionadded:: 3.3
 
 
-.. function:: gmtime([secs])
+.. function:: gmtime([seconds])
 
    Convert a time expressed in seconds since the epoch_ to a :class:`struct_time` in
-   UTC in which the dst flag is always zero.  If *secs* is not provided or
+   UTC in which the dst flag is always zero.  If *seconds* is not provided or
    :const:`None`, the current time as returned by :func:`.time` is used.  Fractions
    of a second are ignored.  See above for a description of the
    :class:`struct_time` object. See :func:`calendar.timegm` for the inverse of this
@@ -268,11 +269,11 @@ Functions
       Accepts any real number, not only integer or float.
 
 
-.. function:: localtime([secs])
+.. function:: localtime([seconds])
 
-   Like :func:`gmtime` but converts to local time.  If *secs* is not provided or
-   :const:`None`, the current time as returned by :func:`.time` is used.  The dst
-   flag is set to ``1`` when DST applies to the given time.
+   Like :func:`gmtime` but converts to local time.  If *seconds* is not
+   provided or :const:`None`, the current time as returned by :func:`.time`
+   is used.  The dst flag is set to ``1`` when DST applies to the given time.
 
    :func:`localtime` may raise :exc:`OverflowError`, if the timestamp is
    outside the range of values supported by the platform C :c:func:`localtime`
@@ -284,7 +285,7 @@ Functions
       Accepts any real number, not only integer or float.
 
 
-.. function:: mktime(t)
+.. function:: mktime(time_tuple)
 
    This is the inverse function of :func:`localtime`.  Its argument is the
    :class:`struct_time` or full 9-tuple (since the dst flag is needed; use ``-1``
@@ -391,7 +392,7 @@ Functions
 
    .. versionadded:: 3.7
 
-.. function:: sleep(secs)
+.. function:: sleep(seconds)
 
    Suspend execution of the calling thread for the given number of seconds.
    The argument may be a non-integer to indicate a more precise sleep time.
@@ -404,13 +405,14 @@ Functions
 
    .. rubric:: Windows implementation
 
-   On Windows, if *secs* is zero, the thread relinquishes the remainder of its
-   time slice to any other thread that is ready to run. If there are no other
-   threads ready to run, the function returns immediately, and the thread
+   On Windows, if *seconds* is zero, the thread relinquishes the remainder of
+   its time slice to any other thread that is ready to run. If there are no
+   other threads ready to run, the function returns immediately, and the thread
    continues execution.  On Windows 10 and newer the implementation uses
    a `high-resolution timer
    <https://learn.microsoft.com/windows/win32/api/synchapi/nf-synchapi-createwaitabletimerexw>`_
-   which provides resolution of 100 nanoseconds. If *secs* is zero, ``Sleep(0)`` is used.
+   which provides resolution of 100 nanoseconds. If *seconds* is zero,
+   ``Sleep(0)`` is used.
 
    .. rubric:: Unix implementation
 
@@ -425,12 +427,12 @@ Functions
       To voluntarily relinquish the CPU, specify a real-time :ref:`scheduling
       policy <os-scheduling-policy>` and use :func:`os.sched_yield` instead.
 
-   .. audit-event:: time.sleep secs
+   .. audit-event:: time.sleep seconds
 
    .. versionchanged:: 3.5
-      The function now sleeps at least *secs* even if the sleep is interrupted
-      by a signal, except if the signal handler raises an exception (see
-      :pep:`475` for the rationale).
+      The function now sleeps at least *seconds* even if the sleep is
+      interrupted by a signal, except if the signal handler raises an
+      exception (see :pep:`475` for the rationale).
 
    .. versionchanged:: 3.11
       On Unix, the ``clock_nanosleep()`` and ``nanosleep()`` functions are now
@@ -445,13 +447,13 @@ Functions
 .. index::
    single: % (percent); datetime format
 
-.. function:: strftime(format[, t])
+.. function:: strftime(format[, time_tuple])
 
    Convert a tuple or :class:`struct_time` representing a time as returned by
    :func:`gmtime` or :func:`localtime` to a string as specified by the *format*
-   argument.  If *t* is not provided, the current time as returned by
+   argument.  If *time_tuple* is not provided, the current time as returned by
    :func:`localtime` is used.  *format* must be a string.  :exc:`ValueError` is
-   raised if any field in *t* is outside of the allowed range.
+   raised if any field in *time_tuple* is outside of the allowed range.
 
    0 is a legal argument for any position in the time tuple; if it is normally
    illegal the value is forced to a correct one.

Modules/timemodule.c

@@ -978,7 +978,7 @@ time_strftime(PyObject *module, PyObject *args)
 #undef time_char
 #undef format_time
 PyDoc_STRVAR(strftime_doc,
-"strftime(format[, tuple]) -> string\n\
+"strftime(format[, time_tuple]) -> string\n\
 \n\
 Convert a time tuple to a string according to a format specification.\n\
 See the library reference manual for formatting codes. When the time tuple\n\
@@ -1003,7 +1003,7 @@ time_strptime(PyObject *self, PyObject *args)
 
 
 PyDoc_STRVAR(strptime_doc,
-"strptime(string, format) -> struct_time\n\
+"strptime(string[, format]) -> struct_time\n\
 \n\
 Parse a string to a time tuple according to a format specification.\n\
 See the library reference manual for formatting codes (same as\n\
@@ -1056,7 +1056,7 @@ time_asctime(PyObject *module, PyObject *args)
 }
 
 PyDoc_STRVAR(asctime_doc,
-"asctime([tuple]) -> string\n\
+"asctime([time_tuple]) -> string\n\
 \n\
 Convert a time tuple to a string, e.g. 'Sat Jun 06 16:26:11 1998'.\n\
 When the time tuple is not present, current time as returned by localtime()\n\
@@ -1075,11 +1075,11 @@ time_ctime(PyObject *self, PyObject *args)
 }
 
 PyDoc_STRVAR(ctime_doc,
-"ctime(seconds) -> string\n\
+"ctime([seconds]) -> string\n\
 \n\
 Convert a time in seconds since the Epoch to a string in local time.\n\
-This is equivalent to asctime(localtime(seconds)). When the time tuple is\n\
-not present, current time as returned by localtime() is used.");
+This is equivalent to asctime(localtime(seconds)). When 'seconds' is not\n\
+passed in, convert the current time instead.");
 
 #ifdef HAVE_MKTIME
 static PyObject *
@@ -1153,7 +1153,7 @@ time_mktime(PyObject *module, PyObject *tm_tuple)
 }
 
 PyDoc_STRVAR(mktime_doc,
-"mktime(tuple) -> floating-point number\n\
+"mktime(time_tuple) -> floating-point number\n\
 \n\
 Convert a time tuple in local time to seconds since the Epoch.\n\
 Note that mktime(gmtime(0)) will not generally return zero for most\n\