The Foundations section of the Temporal Developer's guide covers the minimum set of concepts and implementation details needed to build and run a Temporal Application – that is, all the relevant steps to start a Workflow Execution that executes an Activity.
Learn how to use the Temporal Python SDK.
The Testing section of the Temporal Developer's guide covers the many ways to test the state of your Temporal Application; that is, ways to view which Workflow Executions are tracked by the Platform and the state of any given Workflow Execution, either currently or at points of an execution.
The Versioning section of the Temporal Developer's guide covers how to update Workflow Definitions without causing non-deterministic behavior in current long-running Workflows.