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How to Define Nox Sessions in Python

Automate repetitive tasks like testing and linting with reusable Nox sessions.

nox automation task-runner
Python 
import nox


@nox.session(python=["3.9", "3.10"])
def tests(session):
    session.install("pytest")
    session.run("pytest")


@nox.session(python="3.9")
def lint(session):
    session.install("ruff")
    session.run("ruff", "check", ".")


if __name__ == "__main__":
    print("Nox sessions defined: tests, lint")
   …
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