Remove as_integer_ratio().

d0abc8dad8626d905f02f0fa070f2441e537b022
commit d0abc8dad8626d905f02f0fa070f2441e537b022
diff --git a/Doc/library/imath.rst b/Doc/library/imath.rst
@@ -9,22 +9,13 @@
 --------------
 
 This module provides access to the mathematical functions for integer arguments.
-Most functions in this module accept integers and objects that implement the
+These functions accept integers and objects that implement the
 :meth:`__index__` method which is used to convert the object to an integer
-number.  These functions cannot be used with floating-point numbers or complex
+number.  They cannot be used with floating-point numbers or complex
 numbers.
 
-The following functions are provided by this module.  Except when explicitly
-noted otherwise, all return values are integers.
-
-
-.. function:: as_integer_ratio(number)
-
-   Return integer ratio.
-
-   This function returns ``number.as_integer_ratio()`` if the argument has
-   the ``as_integer_ratio()`` method, otherwise it returns a pair
-   ``(number.numerator, number.denominator)``.
+The following functions are provided by this module.  All return values are
+integers.
 
 
 .. function:: comb(n, k)

diff --git a/Lib/test/test_imath.py b/Lib/test/test_imath.py
@@ -72,33 +72,6 @@ def assertIntEqual(self, actual, expected):
         self.assertEqual(actual, expected)
         self.assertIs(type(actual), int)
 
-    def testAsIntegerRatio(self):
-        as_integer_ratio = imath.as_integer_ratio
-        self.assertEqual(as_integer_ratio(0), (0, 1))
-        self.assertEqual(as_integer_ratio(3), (3, 1))
-        self.assertEqual(as_integer_ratio(-3), (-3, 1))
-        self.assertEqual(as_integer_ratio(False), (0, 1))
-        self.assertEqual(as_integer_ratio(True), (1, 1))
-        self.assertEqual(as_integer_ratio(0.0), (0, 1))
-        self.assertEqual(as_integer_ratio(-0.0), (0, 1))
-        self.assertEqual(as_integer_ratio(0.875), (7, 8))
-        self.assertEqual(as_integer_ratio(-0.875), (-7, 8))
-        self.assertEqual(as_integer_ratio(Decimal('0')), (0, 1))
-        self.assertEqual(as_integer_ratio(Decimal('0.875')), (7, 8))
-        self.assertEqual(as_integer_ratio(Decimal('-0.875')), (-7, 8))
-        self.assertEqual(as_integer_ratio(Fraction(0)), (0, 1))
-        self.assertEqual(as_integer_ratio(Fraction(7, 8)), (7, 8))
-        self.assertEqual(as_integer_ratio(Fraction(-7, 8)), (-7, 8))
-
-        self.assertRaises(OverflowError, as_integer_ratio, float('inf'))
-        self.assertRaises(OverflowError, as_integer_ratio, float('-inf'))
-        self.assertRaises(ValueError, as_integer_ratio, float('nan'))
-        self.assertRaises(OverflowError, as_integer_ratio, Decimal('inf'))
-        self.assertRaises(OverflowError, as_integer_ratio, Decimal('-inf'))
-        self.assertRaises(ValueError, as_integer_ratio, Decimal('nan'))
-
-        self.assertRaises(TypeError, as_integer_ratio, '0')
-
     def testFactorial(self):
         factorial = imath.factorial
         self.assertEqual(factorial(0), 1)

diff --git a/Modules/clinic/imathmodule.c.h b/Modules/clinic/imathmodule.c.h
diff --git a/Modules/imathmodule.c b/Modules/imathmodule.c
@@ -10,81 +10,6 @@ module imath
 /*[clinic end generated code: output=da39a3ee5e6b4b0d input=0b5ec353335010dd]*/
 
 
-/*[clinic input]
-imath.as_integer_ratio
-
-    x: object
-    /
-
-greatest common divisor of x and y
-[clinic start generated code]*/
-
-static PyObject *
-imath_as_integer_ratio(PyObject *module, PyObject *x)
-/*[clinic end generated code: output=cd8105e5f41e2c52 input=4c6839316976ed71]*/
-{
-    _Py_IDENTIFIER(as_integer_ratio);
-    _Py_IDENTIFIER(numerator);
-    _Py_IDENTIFIER(denominator);
-    PyObject *ratio, *as_integer_ratio, *numerator, *denominator;
-
-    if (PyLong_CheckExact(x)) {
-        return PyTuple_Pack(2, x, _PyLong_One);
-    }
-
-    if (_PyObject_LookupAttrId(x, &PyId_as_integer_ratio, &as_integer_ratio) < 0) {
-        return NULL;
-    }
-    if (as_integer_ratio) {
-        ratio = _PyObject_CallNoArg(as_integer_ratio);
-        Py_DECREF(as_integer_ratio);
-        if (ratio == NULL) {
-            return NULL;
-        }
-        if (!PyTuple_Check(ratio)) {
-            PyErr_Format(PyExc_TypeError,
-                        "unexpected return type from as_integer_ratio(): "
-                        "expected tuple, got '%.200s'",
-                        Py_TYPE(ratio)->tp_name);
-            Py_DECREF(ratio);
-            return NULL;
-        }
-        if (PyTuple_GET_SIZE(ratio) != 2) {
-            PyErr_SetString(PyExc_ValueError,
-                            "as_integer_ratio() must return a 2-tuple");
-            Py_DECREF(ratio);
-            return NULL;
-        }
-    }
-    else {
-        if (_PyObject_LookupAttrId(x, &PyId_numerator, &numerator) < 0) {
-            return NULL;
-        }
-        if (numerator == NULL) {
-            PyErr_Format(PyExc_TypeError,
-                         "required a number, not '%.200s'",
-                         Py_TYPE(x)->tp_name);
-            return NULL;
-        }
-        if (_PyObject_LookupAttrId(x, &PyId_denominator, &denominator) < 0) {
-            Py_DECREF(numerator);
-            return NULL;
-        }
-        if (denominator == NULL) {
-            Py_DECREF(numerator);
-            PyErr_Format(PyExc_TypeError,
-                         "required a number, not '%.200s'",
-                         Py_TYPE(x)->tp_name);
-            return NULL;
-        }
-        ratio = PyTuple_Pack(2, numerator, denominator);
-        Py_DECREF(numerator);
-        Py_DECREF(denominator);
-    }
-    return ratio;
-}
-
-
 /*[clinic input]
 imath.gcd
 
@@ -993,7 +918,6 @@ imath_comb_impl(PyObject *module, PyObject *n, PyObject *k)
 
 
 static PyMethodDef imath_methods[] = {
-    IMATH_AS_INTEGER_RATIO_METHODDEF
     IMATH_COMB_METHODDEF
     IMATH_FACTORIAL_METHODDEF
     IMATH_GCD_METHODDEF