For everything that is important.
Easy to develop with, can make changes to schemas easily.
The same reason everyone else uses it, data crunching or websites.
Easy to deploy in-memory db's
Fast text indexing.
Quick API Development
Quick feature development.
I use Pycharm because nano,emacs,vim all suck
Server deployment and software updates.
Flat file storage
Because it's popular and it's linux.
To see why my way of doing things sucks.
Source Code Management
Cross platform Python dev.
Fast array operations.
For the hard to solve scraping problems.
Finding and scraping data.
Use it with Kafka
Distributed system messaging.
Headless browsing, headless chrome is good too, this is not supported anymore.
For when I need to do a foray into JS land.
Coding talk, music.
Distributed system log tracking