I think it's that python has become a pretty big lingua franca of the programming world - so it makes sense that a lot of tutorials relate other languages to the one tons of people know already.

IMHO they are just catchy titles to grab readers. As an example in the last sentence the author states: "I don't think there is a direct relationship between Python and Rust." That's a fair conclusion as TL; DR;

I've switched from Python to Elixir. Python was my favorite language. I fell in love with functional programming after trying out Scala and spent a fair amount of time after trying out different languages to see which one was a good fit for me. Elixir is that language for me. When I start talking about it I seem to go on and on so I'll stop there.

I'm also a fan of rust and plan to use it for more system level programming as well. I think its going to open the door to systems programming for more people and I'm excited to see what comes out of it. Also, as someone who has done a fair bit of C/C++, I'm happy to see an alternative.

For me Python's only purpose in my workflow was scripting, I never considered it for application development.

Nowadays that scripting urge is covered by Powershell/F# on Windows and OCaml/F# on GNU/Linux.

Yes. I think Ruby is losing popularity or already has long ago, my guess is a lot of those guys moved to Go or JS on Node. Python isn't really losing popularity, it's probably gaining as many users as it's losing right now. It's just that a lot of people including myself are completely turned off by Python3, so if we're going to break our old code and take on a ton of testing- may as well do rewrites in a new, potentially better language/platform.

For me, Go has problems (as Python does) but thus far I find it the most appealing of all choices. I tend to be attracted to simpler things (worse is better).

I think it's more that many language designers and/or fans don't really understand why Python is so popular, and therefore think the Python ecosystem is an easy ecosystem to draw developers from.

I haven't had the impression that language geeks[1] complain a lot about Python. They certainly complain more about other dynamic languages.

[1] I don't know if I've seen enough designers' opinions about it to say anything.

It isn't that there is a trend away from Python, it's that languages that are not yet very popular want to lure away some of Python's audience to augment their own.

I think it's just a generic "new language guide for the exact target audience", which, realistically, anyone who knows a current language will be able to follow.