Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

* Isort execution

* Fix pylint, adapt coverage

* New isort

* Fix magic_typing lint

* Second round

* Fix pylint

* Third round. Store isort configuration

* Fix latest mistakes

* Other fixes

* Add newline

* Fix lint errors

Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

certbot#7551)

Part of certbot#7550

This PR makes appropriate corrections to run pylint on Python 3.

Why not keeping the dependencies unchanged and just run pylint on Python 3?
Because the old version of pylint breaks horribly on Python 3 because of unsupported version of astroid.

Why updating pylint + astroid to the latest version ?
Because this version only fixes some internal errors occuring during the lint of Certbot code, and is also ready to run gracefully on Python 3.8.

Why upgrading mypy ?
Because the old version does not support the new version of astroid required to run pylint correctly.

Why not upgrading mypy to its latest version ?
Because this latest version includes a new typshed version, that adds a lot of new type definitions, and brings dozens of new errors on the Certbot codebase. I would like to fix that in a future PR.

That said so, the work has been to find the correct set of new dependency versions, then configure pylint for sane configuration errors in our situation, disable irrelevant lintings errors, then fixing (or ignoring for good reason) the remaining mypy errors.

I also made PyLint and MyPy checks run correctly on Windows.

* Start configuration

* Reconfigure travis

* Suspend a check specific to python 3. Start fixing code.

* Repair call_args

* Fix return + elif lints

* Reconfigure development to run mainly on python3

* Remove incompatible Python 3.4 jobs

* Suspend pylint in some assertions

* Remove pylint in dev

* Take first mypy that supports typed-ast>=1.4.0 to limit the migration path

* Various return + else lint errors

* Find a set of deps that is working with current mypy version

* Update local oldest requirements

* Remove all current pylint errors

* Rebuild letsencrypt-auto

* Update mypy to fix pylint with new astroid version, and fix mypy issues

* Explain type: ignore

* Reconfigure tox, fix none path

* Simplify pinning

* Remove useless directive

* Remove debugging code

* Remove continue

* Update requirements

* Disable unsubscriptable-object check

* Disable one check, enabling two more

* Plug certbot dev version for oldest requirements

* Remove useless disable directives

* Remove useless no-member disable

* Remove no-else-* checks. Use elif in symetric branches.

* Add back assertion

* Add new line

* Remove unused pylint disable

* Remove other pylint disable

…ns (certbot#7641)

This PRs extends the installer tests on Azure Pipeline, in order to run the integration tests on a certbot instance installed with the Windows installer for several Windows versions, corresponding to the scope of supported versions on Certbot:
* Windows Server 2012 R2
* Windows Server 2016
* Windows Server 2019

One can see the result on: https://dev.azure.com/adferrand/certbot/_build/results?buildId=311

* Try specific installer-build step

* Install Python manually

* Add tests on windows 2019

Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

Co-Authored-By: Brad Warren <bmw@users.noreply.github.com>

# Conflicts:
#	certbot/CHANGELOG.md

# Conflicts:
#	letsencrypt-auto-source/Dockerfile.redhat6
#	letsencrypt-auto-source/tests/centos6_tests.sh