When we introduced Kedro, we touched briefly on how to specify a project’s dependencies to make it easier for others to run your project and avoid version conflicts downstream.
You can add or remove dependencies. For a new project, edit
src/requirements.txt and then run the following:
build-reqs command will:
src/requirements.infrom the contents of
pip compile the requirements listed in
src/requirements.txtto specify a list of pinned project dependencies (those with a strict version)
src/requirements.in contains “source” requirements, while
src/requirements.txt contains the compiled version of those and requires no manual updates.
To further update the project requirements, you should modify
src/requirements.txt) and re-run
To install the project-specific dependencies, navigate to the root directory of the project and run:
kedro install automatically compiles project dependencies by running
kedro build-reqs behind the scenes if the
src/requirements.in file doesn’t exist.
To skip the compilation step and install requirements as-is from
src/requirements.txt, run the following:
kedro install --no-build-reqs
This takes the latest version of a dependency that is available within the range specified. It allows flexibility in the version of the dependency that
pip installs. For example, if
ipython>=7.0.0,<8.0 is specified, then the most up-to-date version available is installed.
To force the compilation, even if
src/requirements.in already exists, run the following:
kedro install --build-reqs
In some cases, such as a production setting, this is useful to eliminate ambiguity and specify exactly the version of each dependency that is installed.