# Developers

Whatever language you write in, your task as a programmer is to do the best you can with the tools at hand. A good programmer can overcome a poor language or a clumsy operating system, but even a great programming environment will not rescue a bad programmer. —Kernighan and Pike

This section is for the developers of Octopus:

## External Tools

You can use the following tools to view/analyze octopus

By the way, you may want to see how the code is evolving with time:

## Pseudopotentials

Detailed description of several pseudopotential formats.

• ABINIT description of the pseudopotential file format used by the ABINIT code.
• PWscf description of the pseudopotential file format used by the PWscf code.