db_pick_random.py

import sqlite3
from random import randint

conn = sqlite3.connect("computer_cards.db")


def read_all_cards():
    result = conn.execute("SELECT * FROM computer")
    return result.fetchall()


def pick_card():
    cards = read_all_cards()
    random_card = cards[randint(0, len(cards) - 1)]
    return random_card


resp = "y"
while resp == "y":
    print(pick_card())
    resp = input("pick another card?[y/n]:")

conn.close()