Sometime needs to delete all migration file in django here is how you will reset migrations file

delete_migrations.py

import os
import glob

dot_py = glob.glob('*/migrations/*.py', recursive=True)
for filePath in dot_py:
    if not os.path.basename(filePath) == '__init__.py':
        try:
            os.remove(filePath)
        except OSError:
            print("Error while deleting file")

dot_pyc = glob.glob('*/migrations/*.pyc', recursive=True)
for filePath in dot_pyc:
    try:
        os.remove(filePath)
    except OSError:
        print("Error while deleting file")