From 809ddaaafb9c08bcf42e1a9e93dd2f9f604bdd41 Mon Sep 17 00:00:00 2001 From: Georg Brandl Date: Tue, 1 Jul 2008 20:39:59 +0000 Subject: [PATCH] #3191: fix round() docs and docstring. --- Doc/library/functions.rst | 10 +++++++--- Python/bltinmodule.c | 4 ++-- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index a420974851..4b1cbc6615 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -964,11 +964,15 @@ are always available. They are listed here in alphabetical order. .. function:: round(x[, n]) Return the floating point value *x* rounded to *n* digits after the decimal - point. If *n* is omitted, it defaults to zero. Values are rounded to the + point. If *n* is omitted, it defaults to zero. Delegates to + ``x.__round__(n)``. + + For the built-in types supporting :func:`round`, values are rounded to the closest multiple of 10 to the power minus *n*; if two multiples are equally close, rounding is done toward the even choice (so, for example, both - ``round(0.5)`` and ``round(-0.5)`` are ``0``, and ``round(1.5)`` is - ``2``). Delegates to ``x.__round__(n)``. + ``round(0.5)`` and ``round(-0.5)`` are ``0``, and ``round(1.5)`` is ``2``). + The return value is an integer if called with one argument, otherwise of the + same type as *x*. .. function:: set([iterable]) diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c index 35ba781be3..bd826f0a57 100644 --- a/Python/bltinmodule.c +++ b/Python/bltinmodule.c @@ -1726,8 +1726,8 @@ PyDoc_STRVAR(round_doc, "round(number[, ndigits]) -> floating point number\n\ \n\ Round a number to a given precision in decimal digits (default 0 digits).\n\ -This returns an int when called with one argument, otherwise a float.\n\ -Precision may be negative."); +This returns an int when called with one argument, otherwise a the\n\ +same type as the number. ndigits may be negative."); static PyObject * -- 2.50.1