author | martin.trojer@nokia.com |
Fri, 31 Jul 2009 15:01:17 +0100 | |
changeset 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
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.. highlightlang:: c |
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.. _boolobjects: |
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Boolean Objects |
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--------------- |
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Booleans in Python are implemented as a subclass of integers. There are only |
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two booleans, :const:`Py_False` and :const:`Py_True`. As such, the normal |
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creation and deletion functions don't apply to booleans. The following macros |
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are available, however. |
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.. cfunction:: int PyBool_Check(PyObject *o) |
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Return true if *o* is of type :cdata:`PyBool_Type`. |
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.. versionadded:: 2.3 |
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.. cvar:: PyObject* Py_False |
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The Python ``False`` object. This object has no methods. It needs to be |
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treated just like any other object with respect to reference counts. |
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.. cvar:: PyObject* Py_True |
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The Python ``True`` object. This object has no methods. It needs to be treated |
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just like any other object with respect to reference counts. |
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.. cmacro:: Py_RETURN_FALSE |
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Return :const:`Py_False` from a function, properly incrementing its reference |
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count. |
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.. versionadded:: 2.4 |
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.. cmacro:: Py_RETURN_TRUE |
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Return :const:`Py_True` from a function, properly incrementing its reference |
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count. |
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.. versionadded:: 2.4 |
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.. cfunction:: PyObject* PyBool_FromLong(long v) |
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Return a new reference to :const:`Py_True` or :const:`Py_False` depending on the |
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truth value of *v*. |
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.. versionadded:: 2.3 |