syntax cosmetics ;)

These constructs are equivalent.

BTW: I am independently developing similar project in perl. You can check it out on https://bitbucket.org/bartlomiejb/youtube-bb-get It isn't as robust and functional as youtube-dl though, so maybe I'll abandon it and join your efforts...

I translated ```_static_decrypt_signature()``` method to perl syntax using simple script written in perl (https://bitbucket.org/bartlomiejb/youtube-bb-get/src/tip/devel/py2pl.pl), but it seems it is not enough - I again receive 403 errors ... :/ (it seems algo for "s" with length 86 changed recently). I guess I'd have to write swf code analyzer as you did, but that's a non-trivial task...