The Task Pipeline

Tasks are run and managed within the task pipeline.

bootstrap

A shortcut to configuring a task pipeline is using the bootstrap method:

from cadence import bootstrap

if __name__ == "__main__":
    bootstrap()

The bootstrap method:

• Configures a logger named cadence and cadence-subprocess
• Configures and starts the task pipeline
• Registers an exit event which stops the pipeline and the tasks it manages when the application stops

The bootstrap method takes the following arguments:

Name	Type	Default	Description
max_threads	Optional[int]	4	The max number of tasks that will run concurrently.
run_scheduler	Optional[bool]	true	Whether to automatically run the pipeline.
hooks	Optional[TaskPipelineHooks]	[]	A registry of pipeline and task lifecycle hooks.
tasks	Optional[list[Task]]	[]	A list of tasks to run.