old_contents: from importlib import import_module
  
  from django.apps import apps
  from django.core.exceptions import ImproperlyConfigured
  
  
  def get_callable(func_or_path):
      """
      Receives a dotted path or a callable, Returns a callable or None
      """
      if callable(func_or_path):
          return func_or_path
  
      module_name = '.'.join(func_or_path.split('.')[:-1])
      function_name = func_or_path.split('.')[-1]
      _module = import_module(module_name)
      func = getattr(_module, function_name)
      return func
  
  
  def clean_app_config(app_path):
      """
      Removes the AppConfig path for this app and returns the new string
      """
      apps_names = [app.name for app in apps.get_app_configs()]
      if app_path in apps_names:
          return app_path
      else:
          app_split = app_path.split('.')
          new_app = '.'.join(app_split[:-2])
          if new_app in apps_names:
              return new_app
          else:
              raise ImproperlyConfigured(
                  "The application {0} is not in the configured apps or does" +
                  "not have the pattern app.apps.AppConfig".format(app_path)
              )
  
new_contents: from importlib import import_module
  
  from django.apps import apps
  from django.core.exceptions import ImproperlyConfigured
  
  
  def get_callable(func_or_path):
      """
      Receives a dotted path or a callable, Returns a callable or None
      """
      if callable(func_or_path):
          return func_or_path
  
      module_name = '.'.join(func_or_path.split('.')[:-1])
      function_name = func_or_path.split('.')[-1]
      _module = import_module(module_name)
      func = getattr(_module, function_name)
      return func
  
  
  def clean_app_config(app_path):
      """
      Removes the AppConfig path for this app and returns the new string
      """
      apps_names = [app.name for app in apps.get_app_configs()]
      if app_path in apps_names:
          return app_path
      else:
          app_split = app_path.split('.')
          new_app = '.'.join(app_split[:-2])
          if new_app in apps_names:
              return new_app
          else:  # noqa
              raise ImproperlyConfigured(
                  "The application {0} is not in the configured apps or does" +
                  "not have the pattern app.apps.AppConfig".format(app_path)
              )
  
subject: Exclude exception from coverage