[Houshalter]

That may be correct, but the download page explicitly says "Remember youtube-dl requires Python version 2.6, 2.7, or 3.2+ to work." and links to python's website. I tried renaming Python.exe and it still worked, so I have no idea what's up with it.

[yohui]

youtube-dl.exe does not need a separate Python installation.

[blakeyrat]

I think you missed the point; the point is: it says it does. Houshalter even quoted it.

Yes, your software's download page is part of the user experience also.