uasyncio create_task methods

[saraverbeecke]

Hi,

What is the best way to create a task from a coro and schedule it to run?
Looking at the docs it seems there are 2 ways to do this:

# Directly use the create_task from uasyncio
uasyncio.create_task(my_coro())

or

# First get the current event_loop instance and use the create_task methof from the returned Loop object.
loop = uasyncio.get_event_loop()
loop.create_task(my_coro())

What is the difference between those two methods?
Running uasyncio.create_task == loop.create_task returns False which means the two functions are not identical apparently...

[dlech]

Use uasyncio.create_task(). The Loop.create_task() method is just a wrapper around it.

micropython/extmod/uasyncio/core.py

Lines 241 to 245 in 699477d

	class Loop:
	_exc_handler = None
	def create_task(coro):
	return create_task(coro)

[peterhinch]

As a general point it is rarely necessary to call .get_event_loop(). Those specialised reasons are

1. If code must be compatible with old versions of CPython.
2. Creating a global exception handler.

See uasyncio tutorial.

[saraverbeecke]

Great docs again! Thanks for this. I was still using the .get_event_loop, but you are right since there is only one. It also does not make sense anymore to get the loop as the asyncio.create_task() handles it already for the (only) active event loop.