Python mescla dois arquivos de bytes
with open("binary_file_1", "ab") as myfile, open("binary_file_2", "rb") as file2:
myfile.write(file2.read())
Poor Pigeon
with open("binary_file_1", "ab") as myfile, open("binary_file_2", "rb") as file2:
myfile.write(file2.read())