Lean and elegant systems programming language
Go is a cross-platform, general purpose, compiled programming language with a very clear and concise specification. It's strength lie with concurrent programming and networking. Because of it's elegance and tooling, it's quite fun to program with.
Versatile scripting language
Python is a mature, cross-platform, opens source scripting language with a clean language design and a feature rich standard library.
GUI application programming with the Qt framework
Qt is a cross-platform application development framework that builds on C++. It is made with application developers in mind and has excellent documentation and a comprehensive library. It's easy and fun to develop with. It supports all major desktop and mobile platforms.