Python
The scripting language most automation is written in. A client library for every service, a huge standard library, and it runs anywhere.
I learned some Python in college and wrote a bit after that, and I will be honest: I do not really write it now. Claude Code writes it.
What I do know is that nearly every internal system I run is Python underneath. The connectors that talk to APIs, the pipelines that produce something on a schedule, the jobs that keep my own data straight. All of it.
That is not an accident. When you orchestrate with AI, you want the deterministic parts to be genuinely deterministic. The model makes the call, and then something boring and predictable does the actual work. Python is the best tool I have found for that half of the job. Every service has a library for it, it reads clearly enough that I can follow what was written for me, and code written this way still runs in five years.
So the honest version is that Python is less a tool I use and more the language my systems are made of.