Python Script Tutorial: Getting Started

In order to write a python script with Kratos the first step would be to "Obtain" the KratosMultiphysics module and then "add" it as an external module to the Python.

There are two ways to "Obtain" the module:

• Download the latest release of Kratos from Kratos' release page
• Getting the Kratos and its GUI from GiD internet retrieve.

A simple way would be to add the KratosMultiphysics module path to the PYTHONPATH environment variable.

Linux

In Linux you can set the python path to the Kratos root directory using export command in terminal:

export PYTHONPATH=/path/to/Kratos

Example:

For a release version extracted your home directory

export PYTHONPATH=$HOME/Kratos

In case of having a GiD installed in GiDx64/GiD14.0.0 subfolder of home:

export PYTHONPATH=$HOME/GiDx64/GiD14.0.0/problemtypes/kratos.gid/exec/Kratos

Windows

To create the path on Windows 10 and having installed Kratos through GiD or either downloaded manually, follow these steps:

• In the search bar type system and select System (Control Panel)

• In the left menu, click the Advanced system settings link.

• Click Environment Variables Button at the bottom. In the section System Variables, find the PYTHONPATH and PYTHONHOME environment variables and select them. Edit both of them. If the PYTHONHOME or PYTHONPATH environment variable do not exist, click New and create them.

  • If you have installed Kratos using GiD: Go to the GiD folder. For example, it could be in C:\Program Files\GiD Inside the GiD folder, you should follow \problemtypes\kratos.gid\exec\Kratos. There are many subfolders here and can be confusing. The correct one is just when you can see the KratosMultiphysics folder. Copy the current path and paste it as variable name.

  • If you have downloaded yourself or you have compiled Kratos in your own computer, copy the Kratos path, for example C:\Kratos

• Click Accept. Now you can go to the next tutorial.

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