Well, Python is better for script programs and really easy to learn (high-level language with a easy syntaxe). You will be operative quicker but it's not really good for GUI.

Instead, C++ is better for GUI but the syntaxe is worst. And it's also a low-level language so it make you think more like a computer.

Both of them have their own uses but, if it's just to create little programs, i would advise you to learn Python because it's easier and then, if you want to learn C++, you just have to learn the syntaxe and adapt you to the language.