What skills and languages will be a useful addition to python 3?

Question

I'm thinking of getting an IT career, and now my attention is focused on learning python. Can you give some advices about what works with python well when you are looking for a job?
(I'm sorry if my English looks like crap)

Answer 1

I can speak only for data-related field of Python:
- SQL - a must-have for database communication and management
- Scala/Java - for Spark/Hadoop programming
- HTML - for web app building (Django, Flask, etc.)
- Javascript - for tweaking interactive visualizations