YoutubeDL: only set the ‘formats’ field of the info_dict if it was already set before

It caused a circular reference error, when trying to dump it to json (for example with the test video for myvideo.de or any other video without formats)
This commit is contained in:
Jaime Marquínez Ferrándiz 2013-12-23 10:23:13 +01:00
parent 8958b6916c
commit b3d9ef88ec

View File

@ -688,7 +688,12 @@ def _free_formats_key(f):
ext_ord)
formats = sorted(formats, key=_free_formats_key)
info_dict['formats'] = formats
if formats[0] is not info_dict:
# only set the 'formats' fields if the original info_dict list them
# otherwise we end up with a circular reference, the first (and unique)
# element in the 'formats' field in info_dict is info_dict itself,
# wich can't be exported to json
info_dict['formats'] = formats
if self.params.get('listformats', None):
self.list_formats(info_dict)
return