passing python byte array to C++ function

Greetings,

first of all I'd like to thank you for this great library, I find it really really useful.
My problem is that I'd like to pass an array of bytes (python array('B') type) from python
to a C++ function, but im not sure how to do that.

Could you please help me with this topic ?

Thank you in advance.

I think you need to use QByteArray in your C++ method to get access to the Python bytes.

Alternatively, if you don't want to make a copy of the Python bytes, you can use a pointer to PyObject in your signature, but then you would need to use the Python C-API to check if the passed object is PyBytes and to extract the data.

if i just use QByteArray, the interpreter gives the following error:

python_qt.py", line 13, in entry
req.my_cpp_func([0xFF])
ValueError: Called my_cpp_func() -> void with wrong number of arguments: ([255],) 

you need use a python string as the input parameter