models.py

from django.db import models
import uuid
import string
import random


class Usuarios(models.Model):
  default_key = ''.join(
    random.SystemRandom().choice(string.ascii_letters + string.digits) for _ in range(10)
  )

  id = models.UUIDField(
    primary_key=True,
    default=uuid.uuid4,
    null=False,
    blank=True,
  )
  login = models.CharField(
    max_length=8,
    null=False,
    blank=False,
    unique=True,
  )
  senha = models.CharField(
    max_length=15,
    default=default_key,
    null=False,
    blank=True,
  )
  data_nascimento = models.DateField(
    null=False,
    blank=False,
  )