It's not my favorite language, but it's the most convenient language by far these days. I try to use others as well. PHP is still fine. Tcl is better than ever. JS just gets a lot of work done with little fuss, though it's kind of a hassle outside the browser. With Python, you can just fire it up and make a GUI app, or a TUI app, or a command-line app, interactive or not, and it's just there with all the tools you need.