Python is the most demanding language now a days. The top 5 languages which are in demand: 

• Python 
• Ruby 
• Java
• C#
• Sql

These languages are now in demand. You can also check this Link given below:

https://www.codingdojo.com/blog/7-most-in-demand-programming-languages-of-2018/

If you are beginner then C is a basic programming language. If you want to develop the logic then go for c and if you are good at c then switch to python as it is one of the trending and easy languages to learn .
Python makes your works easy and convenient it is very powerful programming language.
It has various library.So see inside yourself and choose it accordingly.