Packaging

This section details the steps required to turn your component contribution(s) into a Python package.

You can follow the steps below to package your component contribution(s):

Create a local git repository

First, choose a name for the model your component(s) originate(s) from, following PEP 8 naming convention, i.e. all-lowercase names with underscores if this improves readability only.

Then, create a new directory using your model name and appending the prefix unifhycontrib- to it:

mkdir unifhycontrib-<model_name>

where <model_name> should be replaced with your chosen model name.

Retrieve the component package template

Download the template source and copy the unzipped source in the newly created directory.

wget https://github.com/unifhy-org/unifhycontrib-template/archive/main.zip
unzip unifhycontrib-template-main.zip
mv unifhycontrib-template-main/* unifhycontrib-<model_name>
cd unifhycontrib-<model_name>

Note

You can also download the template source manually: go to https://github.com/unifhy-org/unifhycontrib-template, click ‘Code’, then ‘Download ZIP’.

The template source directory is structured as follows:

unifhycontrib-template
├── unifhycontrib
│   └── template
│       ├── __init__.py
│       ├── surfacelayer.py
│       ├── subsurface.py
│       ├── openwater.py
│       └── version.py
├── README.rst
├── requirements.txt
└── setup.py

Rename the existing Python package using your model name:

mv unifhycontrib/template unifhycontrib/<model_name>

Add and commit those files to the repository:

git commit -am "start with template"

Bring in your component contribution(s)

The template features three trivial components SurfaceLayerComponent, SubSurfaceComponent, and OpenWaterComponent.

Depending on the number of components your contribution overlaps with, keep only the relevant ones and delete the other ones.

For example, if your contribution simulates the surface layer and the subsurface parts of the terrestrial water cycle:

• delete the module openwater.py, and

• remove from .openwater import OpenWaterComponent in __init__.py.

Then, bring in your own components:

• replace the trivial template components SurfaceLayerComponent and SubSurfaceComponent, in the modules surfacelayer.py and subsurface.py, respectively, with your own classes developed as per the Development section.

Note

If your component(s) require(s) Python packages that are not available in the Python Standard Library, you need to list these in requirements.txt (one package per line only), e.g.:

unifhy
numpy
pandas

Specify the version number for your component contribution(s) in the module version.py following the Semantic Versioning guidelines.

Finally, overwrite the content of README.rst to provide a description for your model components.

Once this is done, commit your component contribution(s) to the git repository:

git commit -am "bring in my own components"

Populate the package metadata

Modify the first section in the setup.py module with the relevant metadata for your package. This will be used when your package is uploaded to the Python Package Index (PyPI).

Now that your component(s) has (have) been turned into a Python package, please consider sharing it (them) with the unifhy community.