Eryk Sun <[email protected]> added the comment:
A simple ctypes type implements a get function that's called when its value is
returned as an attribute of struct/union, index of an array/pointer, or result
of a function pointer. For example:
>>> a = (ctypes.c_char * 1)(97)
>>> a[0]
b'a'
>>> p = ctypes.POINTER(ctypes.c_char)(a)
>>> p[0]
b'a'
This behavior can't be changed. However, using a subclass of c_char works
around it. For example:
>>> class my_char(ctypes.c_char): pass
...
>>> a = (my_char * 1)(97)
>>> a[0]
<my_char object at 0x7f007dadf640>
>>> a[0].value
b'a'
>>> p = ctypes.POINTER(my_char)(a)
>>> p[0]
<my_char object at 0x7f007dadf6c0>
>>> p[0].value
b'a'
----------
nosy: +eryksun
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<https://bugs.python.org/issue45285>
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