Buggy: inspect.iscoroutinefunction and inspect.isfunction :(

fputils.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import inspect

def iscoroutinefunction(fn):
    if inspect.iscoroutinefunction(fn):
        return True
    if inspect.iscoroutinefunction(getattr(fn, "__call__", None)):
        return True
    return False

async def execute(fn, *args, **kwargs):
    if callable(fn):
        if iscoroutinefunction(fn):
            result = await fn(*args, **kwargs)
        else:
            result = fn(*args, **kwargs)
    else:
        raise RuntimeError(
            "Expected argument `fn` is callable."
        )
    return result