fix: replace localhost with ip address in case localhost is ipv6 addr?? Norbert had an issue with his docker container where the healthcheck was timing out/failing. He diagnosed it as a ipv6 address bound to localhost. Not sure if this is the right fix. Might be better to determine where localhost is bound (V4 or V6 address) but I don't have an environment I can test with.

try:
    # python 3.5+
    from os import scandir
except ImportError:
    # python 2 fallback
    import os

    import scandir  # pip package
    os.scandir = scandir.scandir