Postprocessors: use a list for the files that can be deleted

[youtube-dl] / youtube_dl / postprocessor / common.py

diff --git a/youtube_dl/postprocessor/common.py b/youtube_dl/postprocessor/common.py
index ef9fdfa19a5562b6b85840ce129b632967b30326..3b0e8ddd8bfed92f2e9043b0adea2655a9e5f67b 100644 (file)
--- a/youtube_dl/postprocessor/common.py
+++ b/youtube_dl/postprocessor/common.py
@@ -42,14 +42,14 @@ class PostProcessor(object):
         one has an extra field called "filepath" that points to the
         downloaded file.
 
-        This method returns a tuple, the first element of which describes
-        whether the original file should be kept (i.e. not deleted - None for
-        no preference), and the second of which is the updated information.
+        This method returns a tuple, the first element is a list of the files
+        that can be deleted, and the second of which is the updated
+        information.
 
         In addition, this method may raise a PostProcessingError
         exception if post processing fails.
         """
-        return None, information  # by default, keep file and do nothing
+        return [], information  # by default, keep file and do nothing
 
     def try_utime(self, path, atime, mtime, errnote='Cannot update utime of file'):
         try: