Asyncio task creation with different accepted methods give different results - python-3.x

Question

Having the fololowing code:
import asyncio
async def mycoro(number: int):
print(f"Starting {number}")
await asyncio.sleep(1)
print(f"Finishing {number}")
return str(number)
c = mycoro(7)
# task = asyncio.ensure_future(c)
task = asyncio.create_task(c)
loop = asyncio.get_event_loop()
loop.run_until_complete(task)
loop.close()
Why do I get sys:1: RuntimeWarning: coroutine 'mycoro' was never awaited
while:
import asyncio
async def mycoro(number: int):
print(f"Starting {number}")
await asyncio.sleep(1)
print(f"Finishing {number}")
return str(number)
c = mycoro(7)
task = asyncio.ensure_future(c)
# task = asyncio.create_task(c)
loop = asyncio.get_event_loop()
loop.run_until_complete(task)
loop.close()
runs as expected
IF
as per https://docs.python.org/3.9/library/asyncio-task.html#creating-tasks both ways of creating tasks:
task = asyncio.create_task(coro())
task = asyncio.ensure_future(coro())
are accepted?
*Running with python3.9

Answer 1

The warning is just a side effect of the error that occurs before the warning and which is the real issue:
Traceback (most recent call last):
File "/home/hniksic/Desktop/a.py", line 11, in <module>
task = asyncio.create_task(c)
File "/usr/lib/python3.8/asyncio/tasks.py", line 381, in create_task
loop = events.get_running_loop()
RuntimeError: no running event loop
You can't call asyncio.create_task() outside of a running event loop; it is designed to be called from inside a coroutine to submit additional tasks to the event loop. The reason for that design is that submitting tasks to the "current" event loop (one returned by asyncio.get_event_loop()), as ensure_future does, is incompatible with asyncio.run(), which always creates a fresh event loop. In other words, if asyncio.create_task(c) at top-level submitted c to the "current" event loop, then asyncio.run(other_coroutine()) would ignore c because it runs a different event loop. To avoid confusion, asyncio.create_task() requires being called from inside a running event loop.
If you want to create tasks on a particular event loop before running it with run_until_complete(), you can use loop.create_task(c) instead. Making that change removes the error.