Ifotools

Collection of useful interferometer functions.

Layout

The overall package is called ifotools, in which submodules(folders) can be created. Every folder should have an __init__.py file inside (can be empty). For now the suggestion is to put virgo related functions under src/ifotools/virgo

examples should contain notebooks explaining how the functions can be used. tests should contain pytest compatible tests (see https://pytest-with-eric.com/ and https://docs.pytest.org/en/stable/getting-started.html)

Optimally the folder structure in all three (src, tests, examples) should be identical.

Installation

Clone the repository

git clone git@gitlab.com:ifosim/ifotools.git
cd ifotools

Conda (prefered)

Install via pip in any conda/python environment.

conda create -n ifotools --file environment.yml
pip install -e . --no-deps --no-build-isolation

Pip

pip install -e .[test,lint,dev]

SSH keys

The above requires you to have an ssh key added to your gitlab account:

• https://gitlab.nikhef.nl/-/user_settings/ssh_keys
• https://docs.gitlab.com/user/ssh/#what-are-ssh-keys

Alternatively you can do

git clone https://gitlab.com/ifosim/ifotools.git

But you may have to enter your username and password when pushing and pulling.

To test:

python -c 'import ifotools'

Updating

Just run

git pull

in the repo root folder and it should update.

Where to add code

You can just add python files in src/ifotools. You can also add folders, as long as they have an __init__.py inside.

Imports

It would be cleanest to use absolute imports inside the package e.g.

from ifotools.sympy_helpers import print_expression_eval

and not

from .sympy_helpers import ****

Formatting and linting

It is a good habit to use ruff (pip install ruff/conda install -c conda-forge ruff) and run:

ruff check --fix my_file.py
ruff format my_file.py

This will help you spot common mistakes and format all files in the same way.

VS code can automate this by adding the following to your workspace settings

{
    "[python]": {
        "editor.formatOnSave": true,
        "editor.codeActionsOnSave": {
            "source.fixAll": "explicit",
            "source.organizeImports": "explicit"
        },
    },
    "notebook.formatOnSave.enabled": true,
    "notebook.codeActionsOnSave": {
        "notebook.source.fixAll": "explicit",
        "notebook.source.organizeImports": "explicit"
    },
}

Dependencies

Dependencies are listed in the pyproject.toml. There is a conda environment.yml file which can be generated from the pyproject.toml file via python scripts/generate_environment_files.py. Please make sure they keep in sync.