Java and Python? I have been in the business since 80’s and I can count the java and python guys I know on one hand. All the guys I know use C++ and/or C# to make a living with since the lion share of biz apps are written in a MS language/platform.
What people hack with in the garage at night is inconsequential to me.
I have worked with a couple interpretive languages and they suck. While they are geared for rapid development and allow a less technical person to code, they allow you to bend too many rules and they tend to introduce run-time errors you may not find until well after a release.
Bingo. GMTA
Actually, you are more like to find Java devs in an enterprise environment. If you have a large data center running 10,000 servers, they are more likely to be running AIX or Linux than Windows.