import base64
import random
import uuid

from aioredis import Redis
from captcha.image import ImageCaptcha


async def generate_captcha(redis: Redis):
random_number = str(random.randint(10000, 99999))
image = ImageCaptcha()
captcha_data = image.generate(random_number)
captcha_bytes = captcha_data.getvalue()
captcha_base64 = base64.b64encode(captcha_bytes).decode('utf-8')
captcha_key = uuid.uuid4().hex
for i in range(10):
if await redis.exists(captcha_key):
captcha_key = uuid.uuid4().hex
else:
break
await redis.set(captcha_key, random_number, 15 * 60)
return captcha_key, captcha_base64


Ushbu kod yordamida, 15minut oralg'ida faol bo'lib turadigan, shunchaki raqamli captcha yaratish mumkin, va uni kerakli joyda redis orqali check qilish mumkin. Frontda ham buni img attributi orqali base64da dekodlab ko'rsatish mumkin.

pip install aioredis
pip install captcha