What about adding Golang lessons?

Answer 1

Go is easy to setup. Some had trouble with the system global variables: GOROOT and GOPATH. This is automated and easy in the latest release.
C++ was developed for Bell Labs. C# was developed for Microsoft. Python was developed for Centrum Wiskunde & Informatica in Netherlands. Go was developed for everybody.

Answer 2

GoLang is cool and all but very hard to setup as well as not very broadly used. It's more likely an in-house language that happens to be available for public. Google only developed it for their own use in mind. I think Python and C++ can get the job done.