how to avoid launching a duplicate process with task.executor()

[paulius2k]

Hello,

I am launching a .py program in HASS with task.excutor().

The issue is that I'd like to check whether the task is already running and not launch a second duplicate process.

Is there a way to check that?

Thank you.

[craigbarratt]

You could consider wrapping it in a function that you call with task.create(). That function would call task.unique() then task.excutor(). Calling that function multiple times via task.create() will have no effect if one already exists. You could also use task.name2id() to check if the task exists.

[paulius2k]

thank you @craigbarratt.

I've been trying to do like you suggested for some time with no success.
Could you help me write those few lines?

I have this function, which I run via a service call:

@service
def my_test():

	import sys
	if "/config/pyscript_modules" not in sys.path:
		sys.path.append("/config/pyscript_modules")

	import importlib
	import my_scanner
	importlib.reload(my_scanner)
	task.executor(my_scanner.scan,5,1,5)

So how would I call it with task.unique() and task.create() so that it doesn't launch a duplicate?

[dlashua]

I have not tested this, but, if that is the entirety of the code you're trying to run, I think you can just add task.unique('my_scanner') directly above the call to task.executor.

[paulius2k]

@dlashua thank you - it worked :)

I used scan (the name of my function in my_scanner.py) as the task_name parameter

	[...]
	task.unique('scan', kill_me=True)
	task.executor(my_scanner.scan,5,1,5)