In my Python application, I have a sync function boo() that is called inside a running event loop. boo() has to get some data from foo(arg1, arg2), which is an async function.

Unfortunately, I can’t turn boo() into an async function. It must stay synchronized. (This constraint is out of my hands).

How can I call foo(arg1, arg2) from within boo(), wait until it completes, and continue the execution?

I tried to do

loop = asyncio.get_event_loop()
data = loop.run_until_complete(foo(arg1, arg2))

I also tried

data = asyncio.run_in_executor(None, foo, arg1, arg2)

None of this worked.