gada_pyrunner - Runners

Here is a full list of runners included in this package.

pymodule Runner

Can run a gada node from a Python package installed in PYTHONPATH without spawning a subprocess.

Basic Python package structure:

├── mycomponent
│   ├── __init__.py
│   ├── mynode.py
│   └── config.yml

Content of mynode.py:

def main(**kwargs):
    print("hello world")

Sample config.yml:

nodes:
  mynode:
    runner: pymodule
    module: mycomponent.mynode
    entrypoint: main

Usage:

$ gada mycomponent.mynode
hello world

Full configuration

Based on Python package structure shown above:

nodes:
  mynode:
    runner: pymodule
    [module: mycomponent.mynode]
    [entrypoint: main]

Parameters:

• module: Optional - Python module to load (default is mycomponent)

• entrypoint: Optional - Function to call from module (default is main)

Handle command line arguments

The pymodule runner will call the entrypoint configured in config.yml with the command line arguments. You can retrieve them by adding an argv parameter to your entrypoint.

Content of mynode.py:

def main(argv, **kwargs):
    print(argv)

Usage:

$ gada mycomponent.mynode 1 2
['mycomponent.mynode', '1', '2']

Note

argv[0] is the module that is loaded.