Keep file without any PPs (oops, missed the obvious case)
[youtube-dl] / youtube_dl /
drwxr-xr-x   ..
-rw-r--r-- 32494 FileDownloader.py
-rwxr-xr-x 154546 InfoExtractors.py
-rw-r--r-- 10171 PostProcessor.py
-rw-r--r-- 23833 __init__.py
-rwxr-xr-x 390 __main__.py
-rw-r--r-- 6263 update.py
-rw-r--r-- 18019 utils.py
-rw-r--r-- 28 version.py