Why does sqlite3 + python error occur?

Question

Python

self.cur.execute(self.cur.execute('UPDATE users SET firstname='+ message.text + ' WHERE id=' + str(message.chat.id)))
sqlite3.OperationalError: near "sdfG": syntax error

The function itself

def set_name(self, message):
    self.cur.execute(self.cur.execute('UPDATE users SET firstname='+ message.text + ' WHERE id=' + str(message.chat.id)))
    self.con.commit()
    return

Answer 1

he says to use placeholders
and neighing over
id=' + str(