Announcing Poetry 1.2.0b1

Published on March 17, 2022 in Releases with tags 1.X 1.2

The Poetry team is pleased to announce the immediate availability of Poetry 1.2.0b1.

If you have a previous version of Poetry installed via the official installer, getting Poetry 1.2.0b1 is as easy as:

$ poetry self update --preview

This is a testing release so special care should be taken when upgrading since stability is not guaranteed.

If you encounter any issue with the new features, please report it to the issue tracker.

For a complete list of changes, you can refer to the change log.

Drop python 3.6 support #

Python 3.6 has reached its end of life. So we dropped support for running Poetry with Python 3.6.

However, handling projects that require Python <=3.6 is still possible.

Detect current activated Python #

With the new installer script it was no longer possible to select the Python version used for creating virtual environments by switching the currently activated Python with tools like pyenv.

Poetry now provides a new experimental option virtualenvs.prefer-active-python. Once set to true, Poetry tries to detect the currently activated Python executable when creating a new environment. This should work regardless of the chosen installation method of Poetry.

Deleting multiple environments at once #

If a project had multiple associated virtual environments, it was not possible to delete more than one at a time.

poetry env remove now accepts a list of python executables to remove multiple environments.

Removing all known environments is now possible by applying the new --all parameter.

Configure the number of parallel processes #

poetry install executes operations in parallel. The default number of parallel processes is number_of_cores + 4. It is now possible to limit the number of parallel processes by using the option installer.max-workers.