Use deprecated asyncio function depending on Python version

[raubvogel]

Description

Select which function in the asyncio library is being used in the Writer class based on the Python version calling duologsync/writer.py.

Motivation and Context

asyncio.get_event_loop() was added in 3.7 and then deprecated in 3.12. Currently it still works but it will cause an error message barking about the deprecation. According to the docs, the replacement is asyncio.run(). In other to avoid breaking it while running in an old version of Python (I was testing against 3.6 and later), I propose to make it use asyncio.get_event_loop() as before while Python < 3.12, and asyncio.run() for Python >= 3.12.

References

• https://docs.python.org/3/library/asyncio-eventloop.html
• https://docs.python.org/3/library/asyncio-runner.html#asyncio.run

How Has This Been Tested?

First tested in a separated script (see below) in a Python virtual environment in Rocky Linux 8.10 against

• Python 3.6
• Python 3.9
• Python 3.12

Have not tested against Python 3.13 yet.

raub@desktop:~/dev/scripts/python$ cat ansyncio_test.py
import asyncio
import sys

async def my_coro():
    return "Result oozes out of your screen"

# Now we select based on Python release
def asyncio_test():
    if sys.version_info >= (3, 12): 
        result = asyncio.run(
            my_coro()  
        )

    else:
        result = asyncio.get_event_loop().run_until_complete(
            my_coro()
        )

    return result

print(sys.version_info)
print(asyncio_test())
raub@desktop:~/dev/scripts/python$

Then tested in the duo_log_sync code, also running inside Python virtual environment against the same Python releases.

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• [x ] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)