# Introduction¶

The quantum Monte Carlo package ALF [1, 2] is a powerful tool for simulating a broad set of fermionic systems, but since it’s written in Fortran, it is not very dynamic and can be a bit daunting for new users.

Aiming to solve this problem, pyALF is a set of Python scripts built on top of ALF. It is meant to simplify the different steps of working with ALF, including:

• Obtaining and compiling the ALF source code

• Preparing and running simulations

• Postprocessing and displaying the data obtained during the simulation

The source codes for both ALF and pyALF are publicly available at https://git.physik.uni-wuerzburg.de/ALF.

Prerequisites and installation describes the prerequisites of pyALF and how to set things up to be able to use it in a productive manner.

Usage displays the features of pyALF and how to use them on small examples.

For a reference on pyALF’s features, see Reference.