print(len('\uc815\uc815'))
print(len('\uc815\uc815'.encode('UTF-8')))
print(len('\uc815\uc815'.encode('UTF-16-LE')))
print(len('\uc815\uc815'.encode('UTF-16')))
print(len('\uc815\uc815'.encode('UTF-32-LE')))
print(len('\uc815\uc815'.encode('UTF-32')))
Get the number of bytes needed for a Unicode string