old_contents: from storages.backends.s3boto3 import S3Boto3Storage
  from django.contrib.staticfiles.storage import ManifestFilesMixin
  from pipeline.storage import PipelineMixin
  
  from django.conf import settings
  
  
  class StaticStorage(PipelineMixin, ManifestFilesMixin, S3Boto3Storage):
      """
      Store static files on S3 at STATICFILES_LOCATION, post-process with pipeline
      and then create manifest files for them.
      """
  
      location = settings.STATICFILES_LOCATION
  
  
  class MediaStorage(S3Boto3Storage):
      """
      Store media files on S3 at MEDIAFILES_LOCATION
      """
  
      location = settings.MEDIAFILES_LOCATION
  
      @property
      def base_url(self):
          """
          This is a small hack around the fact that Django Storages dosn't
          provide the same methods as FileSystemStorage.
  
          `base_url` is missing from their implementation of the storage class,
          so we emulate it here by calling URL with an empty key name.
          """
          return self.url("")
  
new_contents: import os
  
  from storages.backends.s3boto3 import S3Boto3Storage, SpooledTemporaryFile
  from django.contrib.staticfiles.storage import ManifestFilesMixin
  from pipeline.storage import PipelineMixin
  
  from django.conf import settings
  
  
  class PatchedS3Boto3Storage(S3Boto3Storage):
      def _save_content(self, obj, content, parameters):
          """
          We create a clone of the content file as when this is passed to boto3
          it wrongly closes the file upon upload where as the storage backend
          expects it to still be open
          """
          # Seek our content back to the start
          content.seek(0, os.SEEK_SET)
  
          # Create a temporary file that will write to disk after a specified
          # size
          content_autoclose = SpooledTemporaryFile()
  
          # Write our original content into our copy that will be closed by boto3
          content_autoclose.write(content.read())
          # Upload the object which will auto close the content_autoclose
          # instance
          super()._save_content(obj, content_autoclose, parameters)
  
          # Cleanup if this is fixed upstream our duplicate should always close
          if not content_autoclose.closed:
              content_autoclose.close()
  
  
  class StaticStorage(PipelineMixin, ManifestFilesMixin, PatchedS3Boto3Storage):
      """
      Store static files on S3 at STATICFILES_LOCATION, post-process with pipeline
      and then create manifest files for them.
      """
  
      location = settings.STATICFILES_LOCATION
  
  
  class MediaStorage(PatchedS3Boto3Storage):
      """
      Store media files on S3 at MEDIAFILES_LOCATION
      """
  
      location = settings.MEDIAFILES_LOCATION
  
      @property
      def base_url(self):
          """
          This is a small hack around the fact that Django Storages dosn't
          provide the same methods as FileSystemStorage.
  
          `base_url` is missing from their implementation of the storage class,
          so we emulate it here by calling URL with an empty key name.
          """
          return self.url("")
  
subject: Patch S3Boto3Storage to prevent closed file error when collectin static