@target(...)

Decorator used to write the output of a task function.

prism.decorators.target(*, type: prism.target.PrismTarget, loc: Union[str, pathlib.Path])

• Parameters

  • *: indicates that the target decorator only accepts keyword arguments.

  • type: a valid Prism target. This controls the output type, e.g., a .txt file, a .csv, a .json, etc. Prism targets are classes that inherit the prism.target.PrismTarget class and implement the save method. See here.

  • loc: a string or path-like object that controls where the output saved.

Example:

Class-based tasks

import prism.task
import prism.target
import prism.decorators

class ExampleTask(prism.task.PrismTask):
    
    @prism.decorators.target(
        type=prism.target.Txt, 
        loc="/Users/hello_world.txt",
        **kwargs
    )
    def run(self, tasks, hooks):
        test_str = "Hello, world!"
        return test_str

Function-based tasks

from prism.decorators import task, target
import prism.target

@task(
    targets=[
        target(type=prism.target.Txt, loc="/Users/hello_world.txt")
    ]
)
def example_function(tasks, hooks):
    test_str = "Hello, world!"
    return test_str