input: Write a function to create a Django application with a model that stores the name, address, and email of a user. If the application and model are successfully created, return True, otherwise return False. The function should handle the creation of the Django app, defining the model, and performing the necessary migrations. If the function is called with an empty string as the app name, it should return False.
  assert create_django_app('myapp') == True
  assert create_django_app('') == False
output: 
  def create_django_app(app_name):
      if not app_name:
          return False
      
      try:
          from django.core.management import call_command
          from django.db import models
          from django.apps import apps
          
          # Create the app
          call_command('startapp', app_name)
          
          # Define the model
          class UserProfile(models.Model):
              name = models.CharField(max_length=100)
              address = models.CharField(max_length=200)
              email = models.EmailField()
          
          # Add the model to the app's models.py
          app_models_path = f'{app_name}/models.py'
          with open(app_models_path, 'a') as f:
              f.write(f'\n\nclass UserProfile(models.Model):\n    name = models.CharField(max_length=100)\n    address = models.CharField(max_length=200)\n    email = models.EmailField()')
          
          # Perform migrations
          call_command('makemigrations', app_name)
          call_command('migrate')
          
          return True
      except Exception as e:
          return False
  