`ctypes._FuncPtr` doesn't seem to exist as described in the doc (misspelled `_CFuncType`?) about cpython

[eryksun]

It's a mistake in the docs, but the source of the mistake is understandable. Instances of ctypes.CDLL create a dynamic _FuncPtr subclass of ctypes._CFuncPtr, with a particular _restype_ and _flags_. For example:

>>> lib = ctypes.CDLL(None)
>>> issubclass(lib._FuncPtr, ctypes._CFuncPtr)
True 
>>> hasattr(ctypes._CFuncPtr, '_restype_')
False
>>> hasattr(ctypes._CFuncPtr, '_flags_')
False
>>> lib._FuncPtr._restype_
<class 'ctypes.c_int'>
>>> lib._FuncPtr._flags_ == ctypes._FUNCFLAG_CDECL
True

>>> lib2 = ctypes.CDLL(None, use_errno=True)
>>> lib2._FuncPtr._flags_ == ctypes._FUNCFLAG_CDECL | ctypes._FUNCFLAG_USE_ERRNO
True

[vmonteco]

It's a mistake in the docs, but the source of the mistake is understandable. Instances of ctypes.CDLL create a dynamic _FuncPtr subclass of ctypes._CFuncPtr, with a particular _restype_ and _flags_. For example:

>>> lib = ctypes.CDLL(None)
>>> issubclass(lib._FuncPtr, ctypes._CFuncPtr)
True 
>>> hasattr(ctypes._CFuncPtr, '_restype_')
False
>>> hasattr(ctypes._CFuncPtr, '_flags_')
False
>>> lib._FuncPtr._restype_
<class 'ctypes.c_int'>
>>> lib._FuncPtr._flags_ == ctypes._FUNCFLAG_CDECL
True

>>> lib2 = ctypes.CDLL(None, use_errno=True)
>>> lib2._FuncPtr._flags_ == ctypes._FUNCFLAG_CDECL | ctypes._FUNCFLAG_USE_ERRNO
True

I see, thank you for the explanation.