-: Hey, welcome to the course. My name's James.
This is just a quick video to let you know
that some of the videos are for software developers
or programmers only, and we've made those as optional.
You don't have to do them.
So if you see a specific video
which has, hyphen, coding inside of it,
and you don't know Python,
then we'd recommend skipping that video.
Just to demonstrate what kind of videos these are,
if I scroll down to, for example,
the Advanced Model Techniques section, the ones
that have this, hyphen, coding at the end
of the lecture are the ones
where we'd recommend you having some Python experience
before doing that.