Development sandbox#


Whether you are working on an issue, trying to implement a new feature, or adding a new weather service, you’ll need a proper sandbox environment. The following procedure outlines how to setup such an environment.

This setup procedure will outline how to install the library and the minimum dependencies required to run the whole test suite.

If, for some reason, you are not available to install all the packages, just leave out some of the extras dependency groups.

Acquire sources and prerequisites#

git clone
cd wetterdienst

# Prerequisites
brew install --cask firefox
brew install git python geckodriver poetry

# Other OS
# You can also get installers and/or release archives for Linux, macOS
# and Windows at
# -
# -
# -

Using Poetry#

poetry install --with=test,dev,docs --extras=sql --extras=export --extras=restapi --extras=explorer --extras=interpolation
poetry shell

Using pip#

python3 -m venv .venv
source .venv/bin/activate

# Install package in "editable" mode.
pip install --editable=".[sql,export,restapi,explorer,interpolation]"

Run tests#

For running the whole test suite, you will need to have Firefox and geckodriver installed on your machine:

poe test

If this does not work for some reason and you would like to skip ui-related tests on your machine, please invoke the test suite with:

poe test -m "not ui"

In order to run only specific tests, invoke:

# Run tests by module name or function name.
poe test -k test_cli

# Run tests by tags.
poe test -m "not (remote or slow)"


  1. Before committing your changes, please als run those steps in order to make the patch adhere to the coding standards used here.

    poe format  # black code formatting
    poe lint    # lint checking
    poe export  # export of requirements (for Github Dependency Graph)
  2. Push your changes and submit them as pull request.

    That’s it, you’re almost done! We’d already like to thank you for taking the time to contribute.

  3. Wait for our feedback. We’ll probably come back to you in a few days and let you know if there’s anything that may need some more polishing.