ahoj mílo

import mysql.connector

def vypis_zaky(mydb, razeni):
    mycursor = mydb.cursor()
    mycursor.execute("SELECT * FROM zaci ORDER BY " + razeni +";")
    myresult = mycursor.fetchall()

    for x in myresult:
        print(x[1], x[2])

def prihlas(uzivatel, heslo):
  global mydb
  mycursor = mydb.cursor()
  mycursor.execute("SELECT id FROM zaci WHERE jmeno ='%s' and heslo = '%s';"
                   % (uzivatel, heslo))
  myresult = mycursor.fetchone()
  if myresult is not None:
    print("ok")
  else:
    print("chyba")
try:
    mydb = mysql.connector.connect(
        host = "studenti.odbornaskola.cz",
        user = "u319",
        password = "22a44e",
        database = "u319",
        port = "3306"

    )
except mysql.connector.Error:
    print("Připojení se nepodařilo")

vypis_zaky(mydb,"jmeno")