A library for driving the Juju commandline client, created by the Juju team.

This library is compatible with released juju versions in the 1.x and 2.x series, beginning with 1.18. It has been used in production since 2013, but was extracted into a separate library in 2017.

It provides specific support for many commands. In cases where it does not provide specific support, the normal juju commandline can be used through the juju and get_juju_output methods.

It provides ways of checking health, as well as waiting for an operation to complete.

It supports interactive commands like register.

It is well-tested, with more than 8K lines of tests against more than 5K lines of code.

It provides fakes for testing, i.e. a fake backend and the convenience function get_fake_client.