old_contents: # coding: utf-8
  import os
  import shutil
  
  from django.core.files.storage import get_storage_class
  
  
  def delete_user_storage(username):
  
      storage = get_storage_class()()
  
      def _recursive_delete(path):
          directories, files = storage.listdir(path)
          for file_ in files:
              storage.delete(os.path.join(path, file_))
          for directory in directories:
              _recursive_delete(os.path.join(path, directory))
  
      if storage.__class__.__name__ == 'FileSystemStorage':
          if storage.exists(username):
              shutil.rmtree(storage.path(username))
      else:
          _recursive_delete(username)
  
  
  def user_storage_exists(username):
  
      storage = get_storage_class()()
      return storage.exists(username)
  
new_contents: # coding: utf-8
  import os
  import shutil
  
  from django.core.files.storage import FileSystemStorage, get_storage_class
  
  
  def delete_user_storage(username):
  
      storage = get_storage_class()()
  
      def _recursive_delete(path):
          directories, files = storage.listdir(path)
          for file_ in files:
              storage.delete(os.path.join(path, file_))
          for directory in directories:
              _recursive_delete(os.path.join(path, directory))
  
      if isinstance(storage, FileSystemStorage):
          if storage.exists(username):
              shutil.rmtree(storage.path(username))
      else:
          _recursive_delete(username)
  
  
  def user_storage_exists(username):
  
      storage = get_storage_class()()
      return storage.exists(username)
  
subject: Use `isinstance()` at the cost of an extra import