fews-3di 0.3.3

Installation and usage

We can be installed using python 3.6+ with:

$ pip install fews-3di

The script is called run-fews-3di, you can pass --help to get usage instructions and --verbose to get more verbose output in case of problems.

run-fews-3di looks for a run_info.xml in the current directory by default, but you can pass a different file in a different location with --settings.

Several input files are needed, they should be in the input directory relative to the run_info.xml, like input/evaporation.nc. Output is stored in the output directory relative to the run_info.xml.

Development instructions (only for the programmers, not for regular use)

We use python’s build-in “virtualenv” to get a nice isolated directory. You only need to run this once:

$ python3 -m venv .

A virtualenv puts its commands in the bin directory. So bin/pip, bin/pytest, etc. Set up the dependencies like this:

$ bin/pip install -r requirements.txt

There will be a script you can run like this:

$ bin/run-fews-3di

It runs the main() function in fews-3di/scripts.py, adjust that if necessary. The script is configured in setup.py (see entry_points).

In order to get nicely formatted python files without having to spend manual work on it, run the following command periodically:

$ bin/black fews_3di

Run the tests regularly. This also checks with pyflakes, black and it reports coverage. Pure luxury:

$ bin/pytest

The tests are also run automatically on “github actions” for “master” and for pull requests. So don’t just make a branch, but turn it into a pull request right away:

• Prepend the title with “[WIP]”, work in progress. That way you make clear it isn’t ready yet to be merged.

• Important: it is easy to give feedback on pull requests. Little comments on the individual lines, for instance. So use it to get early feedback, if you think that’s useful.

• On your pull request page, you also automatically get the feedback from the automated tests.

There’s also coverage reporting on coveralls.io.

If you need a new dependency (like requests), add it in setup.py in install_requires. Local development tools, like “black”, can be added to the requirements.txt directoy. In both cases, run install again to actuall install your dependency:

$ bin/pip install -r requirements.txt

0.3.3 (2020-04-24)

• Another release mechanism fix.

0.3 (2020-04-23)

• Release mechanism fix.

0.2 (2020-04-23)

• Added lateral upload.

• Added rain upload.

• Added evaporation upload.

• Simulation is actually being run now.

• Added processing of the results.

• Added usage instructions.

0.1 (2020-04-09)

• Started copying code from the old project.

• Got 3Di api connection to work, including creating an (empty) simulation.

• Initial project structure created with cookiecutter and https://github.com/nens/cookiecutter-python-template