Method is_p2sh_script_pubkey

code-ch13/script.py:257–264

Returns whether this follows the OP_HASH160 <20 byte hash> OP_EQUAL pattern.

(self)

            and self.cmds[3] == 0x88 and self.cmds[4] == 0xac

    def is_p2sh_script_pubkey(self):
        '''Returns whether this follows the
        OP_HASH160 <20 byte hash> OP_EQUAL pattern.''&#x27;
        # there should be exactly 3 cmds
        # OP_HASH160 (0xa9), 20-byte hash, OP_EQUAL (0x87)
        return len(self.cmds) == 3 and self.cmds[0] == 0xa9 \
            and type(self.cmds[1]) == bytes and len(self.cmds[1]) == 20 \
            and self.cmds[2] == 0x87

    # tag::source2[]
    def is_p2wpkh_script_pubkey(self):  # <2>