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Diffstat (limited to 'Doc/library/types.rst')
| -rw-r--r-- | Doc/library/types.rst | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/Doc/library/types.rst b/Doc/library/types.rst index ddb7e7d..e3cbef5 100644 --- a/Doc/library/types.rst +++ b/Doc/library/types.rst @@ -86,15 +86,17 @@ The module defines the following names: .. data:: GetSetDescriptorType - The type of objects defined in extension modules with ``PyGetSetDef``, such as - ``FrameType.f_locals`` or ``array.array.typecode``. This constant is not - defined in implementations of Python that do not have such extension types, so - for portable code use ``hasattr(types, 'GetSetDescriptorType')``. + The type of objects defined in extension modules with ``PyGetSetDef``, such + as ``FrameType.f_locals`` or ``array.array.typecode``. This type is used as + descriptor for object attributes; it has the same purpose as the + :class:`property` type, but for classes defined in extension modules. .. data:: MemberDescriptorType - The type of objects defined in extension modules with ``PyMemberDef``, such as - ``datetime.timedelta.days``. This constant is not defined in implementations of - Python that do not have such extension types, so for portable code use - ``hasattr(types, 'MemberDescriptorType')``. + The type of objects defined in extension modules with ``PyMemberDef``, such + as ``datetime.timedelta.days``. This type is used as descriptor for simple C + data members which use standard conversion functions; it has the same purpose + as the :class:`property` type, but for classes defined in extension modules. + In other implementations of Python, this type may be identical to + ``GetSetDescriptorType``. |