Comment 15 for bug 1936667

Reviewed: https://review.opendev.org/c/openstack/swift/+/801095
Committed: https://opendev.org/openstack/swift/commit/775ad9a56882b387e834eae7635f9f1ffa7c2f2c
Submitter: "Zuul (22348)"
Branch: master

commit 775ad9a56882b387e834eae7635f9f1ffa7c2f2c
Author: Takashi Kajinami <email address hidden>
Date: Sat Jul 17 01:07:54 2021 +0900

    Remove redundant usage of collections(.abc).Mapping

    The json.loads method returns a normal python dict without any hook
    defined, and type check using the Mapping class is redundant.

    In Python 3.8
    >>> import json
    >>> type(json.loads('{"foo": {"var": "baz"}}'))
    <class 'dict'>

    In Python 2.7
    >>> import json
    >>> type(json.loads('{"foo": {"var": "baz"}}'))
    <class 'dict'>

    With this change we don't have to handle difference between Python 2
    and Python 3 and later about import path we should use to import that
    abstract class

    Closes-Bug: #1936667
    Change-Id: I9232311784d1feff2d669455dafde17ed9f751ad