7.4.2 Long Integer Objects

`PyLongObject`-
This subtype of
`PyObject`represents a Python long integer object.

- PyTypeObject
`PyLong_Type` -
This instance of
`PyTypeObject`represents the Python long integer type. This is the same object as`types.LongType`

.

- int
(`PyLong_Check``PyObject *p`) -
Returns true if its argument is a
`PyLongObject`.

- PyObject*
(`PyLong_FromLong``long v`) -
Return value: New reference.Returns a new
`PyLongObject`object from`v`, or`NULL`on failure.

- PyObject*
(`PyLong_FromUnsignedLong``unsigned long v`) -
Return value: New reference.Returns a new
`PyLongObject`object from a C`unsigned long`, or`NULL`on failure.

- PyObject*
(`PyLong_FromDouble``double v`) -
Return value: New reference.Returns a new
`PyLongObject`object from the integer part of`v`, or`NULL`on failure.

- long
(`PyLong_AsLong``PyObject *pylong`) -
Returns a C
`long`representation of the contents of`pylong`. If`pylong`is greater than`LONG_MAX`, an`OverflowError`is raised.OverflowError

- unsigned long
(`PyLong_AsUnsignedLong``PyObject *pylong`) -
Returns a C
`unsigned long`representation of the contents of`pylong`. If`pylong`is greater than`ULONG_MAX`, an`OverflowError`is raised.OverflowError

- double
(`PyLong_AsDouble``PyObject *pylong`) -
Returns a C
`double`representation of the contents of`pylong`.

- PyObject*
(`PyLong_FromString``char *str, char **pend, int base`) -
Return value: New reference.Return a new
`PyLongObject`based on the string value in`str`, which is interpreted according to the radix in`base`. If`pend`is non-`NULL`,`*`

will point to the first character in`pend``str`which follows the representation of the number. If`base`is`0`

, the radix will be determined base on the leading characters of`str`: if`str`starts with`'0x'`

or`'0X'`

, radix 16 will be used; if`str`starts with`'0'`

, radix 8 will be used; otherwise radix 10 will be used. If`base`is not`0`

, it must be between`2`

and`36`

, inclusive. Leading spaces are ignored. If there are no digits,`ValueError`will be raised.

See