python bytes to C array (like xxd program"

Question

In python3 I have some bytes. I want to export them to C source code. Outside python I use \"xxd -i binary_file\" command.

Example:

x = b\'abc123\'
print         


        

Answer 1

In case you want to use caps or not:

def bytes_to_c_arr(data, lowercase=True):
    return [format(b, '#04x' if lowercase else '#04X') for b in data]

x = b'abc123'
print("unsigned char x[] = {{{}}}".format(", ".join(bytes_to_c_arr(x))))
print("unsigned char x[] = {{{}}}".format(", ".join(bytes_to_c_arr(x, False))))

# output: unsigned char x[] = {0x61, 0x62, 0x63, 0x31, 0x32, 0x33}
#         unsigned char x[] = {0X61, 0X62, 0X63, 0X31, 0X32, 0X33}