Thonny 2.1

Thonny comes with Python 3.6 built in, so just one simple installer is needed, and you're ready to learn to program.

You can also use a separate Python installation if necessary. The initial user interface is stripped of all features that may distract beginners.

Just press Ctrl+F5 instead of F5, and you can run your programs step-by-step, no breakpoints needed. Press F6 for a big step and F7 for a small step. Steps follow program structure, not just code lines.

Once you're done with hello-worlds, select View - Variables and see how your programs and shell commands affect Python variables.