Unable to pickle on Windows 10

[naamancampbell]

As part of using Flask-Testing's LiveServerTestCase, I've changed the project's utils.py to use multiprocess (and dill) to work around a known Windows pickle error.

Using multiprocess/dill, I get past the original error and get the following error:

platform win32  Python 3.6.3, pytest-3.2.5, py-1.5.2, pluggy-0.4.0

================================== FAILURES ===================================
_____________________ TestRegistration.test_registration ______________________

obj = <module 'app.auth.views' from 'C:\\Users\\naama\\OneDrive\\Documents\\Code\\strobla-python\\app\\auth\\views.py'>
name = 'View.as_view.<locals>.view'

    def _getattribute(obj, name):
        for subpath in name.split('.'):
            if subpath == '<locals>':
                raise AttributeError("Can't get local attribute {!r} on {!r}"
                                     .format(name, obj))
            try:
                parent = obj
>               obj = getattr(obj, subpath)
E               AttributeError: module 'app.auth.views' has no attribute 'View'

'c:\python36\Lib\pickle.py':269: AttributeError

The obj object is made up of multiple Flask classes (first three below):

AuthorisationView: <class 'app.auth.views.AuthorisationView'>
Blueprint: <class 'flask.blueprints.Blueprint'>
Client: <class 'stravalib.client.Client'>
...