Q:

High Level language with Low level Graphics

I am looking for a high level language which will still allow me to work directly with graphics. I want to be able to modify screen pixels, for instance. But I do not want to write huge amounts of code for each operation. I want simple one line commands for graphics somewhat like those listed below. What are some programming languages which would have these features?
Possible pseudocode:
Screen.clear
Graphics.line(4,5,20,25).color=green
Circle(centerx,centery,radius)

A:

Depending on what you want to do (ie, how complex do you need to get?) Processing is a very high-level, graphics-focused environment. Note, however, that it seems to be focused on the fixed function OpenGL pipeline, which is deprecated (though arguably the easiest and most intuitive way to get started). 
Processing is built in Java, runs in web browser (or from your desktop), and abstracts most of the initialization and cleanup code required to use OpenGL. 
Edit
I've just noticed your comment that says you're not an experienced programmer. In that case, I'd recommend starting with Processing. Once you get the hang of it, move on to Python.
Another, slightly more complex, option is Python. Python is very powerful, fairly easy to pick up (depending upon your prior development experience), and widely supported. It'll also allow you to use shaders and other features from the 21st century, and is cross-platform See this link for PyOpenGL, the first Python OpenGL site that popped up in google.
Then, there's C# + OpenTK. This can get pretty complex pretty quickly, but is very powerful, and since it's compiled (under .NET or Mono), can potentially give you better performance than Python.
Finally, for close-to-bare-metal performance, C++ is unbeatable, though arguably the most complex of these options, with a significant learning curve. However, most of the example code you'll find online is in C++, which can be an issue if you're not using C++ and aren't comfortable reading it.

