Document all valid types for _as_parameter_

tomasr8 · Jul 29, 2023 · 2d754ff · 2d754ff
1 parent f2abeb5
commit 2d754ff
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
@@ -400,9 +400,10 @@ Calling functions with your own custom data types
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 You can also customize :mod:`ctypes` argument conversion to allow instances of
-your own classes be used as function arguments.  :mod:`ctypes` looks for an
-:attr:`_as_parameter_` attribute and uses this as the function argument.  Of
-course, it must be one of integer, string, or bytes::
+your own classes be used as function arguments. :mod:`ctypes` looks for an
+:attr:`_as_parameter_` attribute and uses this as the function argument. The
+attribute must be an integer, string, bytes, a :mod:`ctypes` instance, or an
+object with an :attr:`_as_parameter_` attribute::
 
    >>> class Bottles:
    ...     def __init__(self, number):