My Code:

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('wagtailcore', '0066_collection_management_permissions'),
        ('wagtailforms', '0004_add_verbose_name_plural'),
        ('wagtailredirects', '0006_redirect_increase_max_length'),
        ('home', '0017_alter_orderdetailpage_options'),
    ]

    operations = [
        # migrations.RemoveField(
        #     # model_name='orderdetailpage',
        #     name='page_ptr',
        # ),
        # migrations.RemoveField(
        #     # model_name='successpage',
        #     name='page_ptr',
        # ),
        migrations.DeleteModel(
            name='MerchantHomePage',
        ),
        migrations.DeleteModel(
            name='OrderDetailPage',
        ),
        migrations.DeleteModel(
            name='SuccessPage',
        ),
    ]

Error:

return Database.Cursor.execute(self, query, params) django.db.utils.OperationalError: near ")": syntax error

Solution:

• It occurs because you are trying to Delete a Class that has no Fields.
• Get rid of the RemoveField section in your migration: normally such migrations have auto in their names eg 0021_auto_20211126_0955.py

Example in my case

• Changed From:

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('wagtailcore', '0066_collection_management_permissions'),
        ('wagtailredirects', '0006_redirect_increase_max_length'),
        ('wagtailforms', '0004_add_verbose_name_plural'),
        ('home', '0020_auto_20211126_0945'),
    ]

    operations = [
        migrations.RemoveField(
           model_name='orderdetailpage',
           name='page_ptr',
        ),
        migrations.DeleteModel(
            name='MerchantHomePage',
        ),
        migrations.DeleteModel(
            name='OrderDetailPage',
        ),
    ]

• to:

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('wagtailcore', '0066_collection_management_permissions'),
        ('wagtailredirects', '0006_redirect_increase_max_length'),
        ('wagtailforms', '0004_add_verbose_name_plural'),
        ('home', '0020_auto_20211126_0945'),
    ]

    operations = [
        # ..removed the RemoveField section
        
        migrations.DeleteModel(
            name='MerchantHomePage',
        ),
        migrations.DeleteModel(
            name='OrderDetailPage',
        ),
    ]

• Then run python manage.py migrate again and everything should be good