1 .. highlightlang:: c 2 3 .. _boolobjects: 4 5 Boolean Objects 6 --------------- 7 8 Booleans in Python are implemented as a subclass of integers. There are only 9 two booleans, :const:`Py_False` and :const:`Py_True`. As such, the normal 10 creation and deletion functions don't apply to booleans. The following macros 11 are available, however. 12 13 14 .. c:function:: int PyBool_Check(PyObject *o) 15 16 Return true if *o* is of type :c:data:`PyBool_Type`. 17 18 .. versionadded:: 2.3 19 20 21 .. c:var:: PyObject* Py_False 22 23 The Python ``False`` object. This object has no methods. It needs to be 24 treated just like any other object with respect to reference counts. 25 26 27 .. c:var:: PyObject* Py_True 28 29 The Python ``True`` object. This object has no methods. It needs to be treated 30 just like any other object with respect to reference counts. 31 32 33 .. c:macro:: Py_RETURN_FALSE 34 35 Return :const:`Py_False` from a function, properly incrementing its reference 36 count. 37 38 .. versionadded:: 2.4 39 40 41 .. c:macro:: Py_RETURN_TRUE 42 43 Return :const:`Py_True` from a function, properly incrementing its reference 44 count. 45 46 .. versionadded:: 2.4 47 48 49 .. c:function:: PyObject* PyBool_FromLong(long v) 50 51 Return a new reference to :const:`Py_True` or :const:`Py_False` depending on the 52 truth value of *v*. 53 54 .. versionadded:: 2.3 55
