Python is one of the most popular languages in the world. It’s perfect for beginners, and also software developers, who need to use it on a day-to-day basis. Python is compatible with Linux, Mac OS X and Windows and the best thing about it is that you don’t need to install anything. If you need to develop an app for Windows, it can be developed using Python. You just have to have Python installed on your system and it will work perfectly fine. 
There are a lot of tutorials available on the Internet where you can learn Python. It works perfectly fine with Linux and also comes pre-installed with Mac OS X. Most web applications and web services these days are being developed using Python. Also, Processing is one of the most popular programming languages which is based on Python.
If you’re looking for a good programming language to start with and want to keep things simple, then I would suggest that Python is the best programming language for you.