From: Ned Batchelder Date: Fri, 17 May 2019 09:59:14 +0000 (-0400) Subject: bpo-36908: 'This module is always available' isn't helpful. (#13297) X-Git-Tag: v3.8.0b1~335 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6faad355db6c2bd4a0ade7868f245b42c04f5337;p=thirdparty%2FPython%2Fcpython.git bpo-36908: 'This module is always available' isn't helpful. (#13297) Makes the documentation of math and cmath module more helpful for the beginners. --- diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst index 9d81730f2012..28cd96b0e12d 100644 --- a/Doc/library/cmath.rst +++ b/Doc/library/cmath.rst @@ -6,13 +6,12 @@ -------------- -This module is always available. It provides access to mathematical functions -for complex numbers. The functions in this module accept integers, -floating-point numbers or complex numbers as arguments. They will also accept -any Python object that has either a :meth:`__complex__` or a :meth:`__float__` -method: these methods are used to convert the object to a complex or -floating-point number, respectively, and the function is then applied to the -result of the conversion. +This module provides access to mathematical functions for complex numbers. The +functions in this module accept integers, floating-point numbers or complex +numbers as arguments. They will also accept any Python object that has either a +:meth:`__complex__` or a :meth:`__float__` method: these methods are used to +convert the object to a complex or floating-point number, respectively, and +the function is then applied to the result of the conversion. .. note:: diff --git a/Doc/library/math.rst b/Doc/library/math.rst index 7129525c7887..49f932d03845 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -10,8 +10,8 @@ -------------- -This module is always available. It provides access to the mathematical -functions defined by the C standard. +This module provides access to the mathematical functions defined by the C +standard. These functions cannot be used with complex numbers; use the functions of the same name from the :mod:`cmath` module if you require support for complex diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c index 8319767b8a9e..b421f04fa605 100644 --- a/Modules/cmathmodule.c +++ b/Modules/cmathmodule.c @@ -1232,8 +1232,8 @@ cmath_isclose_impl(PyObject *module, Py_complex a, Py_complex b, } PyDoc_STRVAR(module_doc, -"This module is always available. It provides access to mathematical\n" -"functions for complex numbers."); +"This module provides access to mathematical functions for complex\n" +"numbers."); static PyMethodDef cmath_methods[] = { CMATH_ACOS_METHODDEF diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c index ba8423211c2b..8f6a303cc4de 100644 --- a/Modules/mathmodule.c +++ b/Modules/mathmodule.c @@ -2759,8 +2759,8 @@ static PyMethodDef math_methods[] = { PyDoc_STRVAR(module_doc, -"This module is always available. It provides access to the\n" -"mathematical functions defined by the C standard."); +"This module provides access to the mathematical functions\n" +"defined by the C standard."); static struct PyModuleDef mathmodule = {