Création de table dans la base de données

    fields = self.models[model_key].fields
KeyError: ('accounts', 'shippingaddress')

class CustomUserManager(BaseUserManager):
    def create_user(self, email, password, **kwargs):
        if not email:
            raise ValueError(" email is required")
        email = self.normalize_email(email)
        # on recupere notre model Shopper
        user = self.model(email=email, **kwargs)
        # on cripte le password
        user.set_password(password)
        user.save()
        return user

    def create_superuser(self, email, password, **kwargs):
        # on set les valeur sur notre dictionnaire
        kwargs["is_staff"] = True
        kwargs["is_superuser"] = True
        kwargs["is_active"] = True

        # on passe la dictionnaire a la fonction create_user
        return self.create_user(email=email, password=password, **kwargs)


class Shopper(AbstractUser):
    username = None
    email = models.EmailField(max_length=240, unique=True)

    USERNAME_FIELD = "email"
    # d'autres champs requis en + de email
    REQUIRED_FIELDS = []
    objects = CustomUserManager()

class Shippingaddress(models.Model):
    # user peut avoir plusieurs address
    user = models.ForeignKey(Shopper, on_delete=models.CASCADE)
    name = models.CharField(max_length=240)
    address_1 = models.CharField(max_length=1024, help_text="numéro de rue adresse de voirie")
    address_2 = models.CharField(max_length=1024, help_text="bâtiment, etage... ", blank=True)
    city = models.CharField(max_length=1024)
    zip_code = models.CharField(max_length=32)
    country = models.CharField(max_length=2, choices=[(c.alpha2.lower(), c.name) for c in countries])

class Migration(migrations.Migration):

    initial = True

    dependencies = [
        ('auth', '0012_alter_user_first_name_max_length'),
    ]

    operations = [
        migrations.CreateModel(
            name='Shopper',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('password', models.CharField(max_length=128, verbose_name='password')),
                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
                ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username')),
                ('first_name', models.CharField(blank=True, max_length=150, verbose_name='first name')),
                ('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')),
                ('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')),
                ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
                ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
                ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.group', verbose_name='groups')),
                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.permission', verbose_name='user permissions')),
            ],
            options={
                'verbose_name': 'user',
                'verbose_name_plural': 'users',
                'abstract': False,
            },
            managers=[
                ('objects', django.contrib.auth.models.UserManager()),
            ],
        ),
    ]

class Migration(migrations.Migration):

    dependencies = [
        ('accounts', '0001_initial'),
    ]

    operations = [
        migrations.AddField(
            model_name='shopper',
            name='stripe_id',
            field=models.CharField(blank=True, max_length=90),
        ),
        migrations.AlterField(
            model_name='shippingaddress',
            name='address_1',
            field=models.CharField(help_text='adresse de voirie et numéro de rue', max_length=1024),
        ),
    ]

class Migration(migrations.Migration):

    dependencies = [
        ('accounts', '0002_shopper_stripe_id_alter_shippingaddress_address_1'),
    ]

    operations = [
        migrations.AddField(
            model_name='shippingaddress',
            name='phone',
            field=phone_field.models.PhoneField(blank=True, help_text='numéro de téléphone', max_length=31),
        ),
    ]

from django.db import connection
with connection.cursor() as cursor:
    cursor.execute("DROP TABLE IF EXISTS nom_de_ta_table_1")
    cursor.execute("DROP TABLE IF EXISTS nom_de_ta_table_2")
    # continue comme ça pour chaque table que tu as.