Python is a general-purpose language, which means it can be used to build just about anything, which will be made easy with the right tools/libraries.Professionally, Python is great for backend web development, data analysis, artificial intelligence, and scientific computing. Many developers have also used Python to build productivity tools, games, and desktop apps, so there are plenty of resources to help you learn how to do those as well.
Python is also one of the hottest skills to have. The latest Stack Overflow Developer Survey (2016) ranked Python as the 4th most popular and most wanted technology of the year. It is today the 2nd most popular programming language in the world based on the PYPL Popularity of Programming Language Index.(2017)