Drop Python 2.7 support #140
Description
In #139 the question has come up whether to drop support for Python 2.7.
I don't have any opinion on that yet, but I'd like to open the discussion.
A related issue is open for jsonpointer at stefankoegl/python-json-pointer#48.
Input
The charts on https://pypistats.org/packages/jsonpatch show download stats based on Python versions.
Sunset date for the Python project itself was Jan 1, 2020: https://www.python.org/doc/sunset-python-2/
See https://python3statement.org/ for projects that have dropped support for Python 2 by/before the sunset date.