code: def compressed(self):
          
          order = ecdsa.SECP256k1.generator.order()
          p = ecdsa.VerifyingKey.from_string(
              compat_bytes(self), curve=ecdsa.SECP256k1).pubkey.point
          x_str = ecdsa.util.number_to_string(p.x(), order)
          # y_str = ecdsa.util.number_to_string(p.y(), order)
          compressed = hexlify(
              compat_bytes(chr(2 + (p.y() & 1)), 'ascii') + x_str).decode(
              'ascii')
          return (compressed)
docs: Derive compressed public key