Programmers are people, but how many python programmers run into double-free bugs?

Language has a lot to do with what sort of issues programmers will have to tackle.

At the same time, how many video players have been written in pure python? Assuming the number is non-zero, how many get any use?

Using python as an example here makes little sense, since the constraints of the problem domain make it a particularly poor choice. Try choosing a language that doesn't suffer as much in performance (future Rust, maybe?).

Oh, I agree. I think that C was the right choice for FFmpeg, at least at the time, and I do not think that python would be the right choice for it today.

I'm just making a point that language is relevant when discussing the type and frequency of errors that are surfacing in a project.