def from_privkey(cls, privkey, prefix=None):
        """ Derive uncompressed public key """
        privkey = PrivateKey(privkey, prefix=prefix or Prefix.prefix)
        secret = unhexlify(repr(privkey))
        order = ecdsa.SigningKey.from_string(
            secret, curve=ecdsa.SECP256k1
        ).curve.generator.order()
        p = ecdsa.SigningKey.from_string(
            secret, curve=ecdsa.SECP256k1
        ).verifying_key.pubkey.point
        x_str = ecdsa.util.number_to_string(p.x(), order)
        # y_str = ecdsa.util.number_to_string(p.y(), order)
        compressed = hexlify(chr(2 + (p.y() & 1)).encode("ascii") + x_str).decode(
            "ascii"
        )
        # uncompressed = hexlify(
        #    chr(4).encode('ascii') + x_str + y_str).decode('ascii')
        return cls(compressed, prefix=prefix or Prefix.prefix)
def from_privkey(cls, privkey, prefix=None):
        """ Derive uncompressed public key """
        privkey = PrivateKey(privkey, prefix=prefix or Prefix.prefix)
        secret = unhexlify(repr(privkey))
        order = ecdsa.SigningKey.from_string(
            secret, curve=ecdsa.SECP256k1
        ).curve.generator.order()
        p = ecdsa.SigningKey.from_string(
            secret, curve=ecdsa.SECP256k1
        ).verifying_key.pubkey.point
        x_str = ecdsa.util.number_to_string(p.x(), order)
        # y_str = ecdsa.util.number_to_string(p.y(), order)
        compressed = hexlify(chr(2 + (p.y() & 1)).encode("ascii") + x_str).decode(
            "ascii"
        )
        # uncompressed = hexlify(
        #    chr(4).encode('ascii') + x_str + y_str).decode('ascii')
        return cls(compressed, prefix=prefix or Prefix.prefix)
def from_privkey ( cls , privkey , prefix = None ) : privkey = PrivateKey ( privkey , prefix = prefix or Prefix . prefix ) secret = unhexlify ( repr ( privkey ) ) order = ecdsa . SigningKey . from_string ( secret , curve = ecdsa . SECP256k1 ) . curve . generator . order ( ) p = ecdsa . SigningKey . from_string ( secret , curve = ecdsa . SECP256k1 ) . verifying_key . pubkey . point x_str = ecdsa . util . number_to_string ( p . x ( ) , order ) # y_str = ecdsa.util.number_to_string(p.y(), order) compressed = hexlify ( chr ( 2 + ( p . y ( ) & 1 ) ) . encode ( "ascii" ) + x_str ) . decode ( "ascii" ) # uncompressed = hexlify( #    chr(4).encode('ascii') + x_str + y_str).decode('ascii') return cls ( compressed , prefix = prefix or Prefix . prefix )
Derive uncompressed public key
Derive uncompressed public key