jupter & asyncio issues

jupyter_asyncio_example.py

# Jupyter runs its own event loop, so trying to work with asyncio causes problems in Jupyter.
# Errors are most commonly:
# RuntimeError: This event loop is already running

## NOTE: as of IPython 7.0, released in late 2018, this may not be needed, per:
# https://blog.jupyter.org/ipython-7-0-async-repl-a35ce050f7f7
# However, await(x) can be used anywhere in Jupyter, but will error on a standalone script. 
# Use asyncio.run(x) or something for .py scripts as described in https://docs.python.org/3/library/asyncio-task.html

# Solution:
import nest_asyncio
nest_asyncio.apply()

# However - you'll still want to avoid calling loop.close();
# this package does not apply to that function, which will still error out if you try it within jupyter.

# If you need to use loop.close(), maybe detect if in Jupyter with something like this -
# Or apply nest_asyncio based on output from this.
def isnotebook():
    try:
        shell = get_ipython().__class__.__name__
        if shell == 'ZMQInteractiveShell':
            return True   # Jupyter notebook or qtconsole
        elif shell == 'TerminalInteractiveShell':
            return False  # Terminal running IPython
        else:
            return False  # Other type (?)
    except NameError:
        return False      # Probably standard Python interpreter