moz-cloud: Python 2/3 compatibility

The Mozilla cloud services are a scalable infrastructure of interoperable services. About Mozilla cloud Services read:

https://docs.services.mozilla.com

This is the parent repository of Mozilla-Cloud's Python 3 movement. The Py3 movement itself takes place in the feature branch origin/six of the git-submodules (listed below). To clone use:

git clone --recursive https://github.com/return42/moz-cloud

To compile the python extension its recommend to install:

sudo apt-get install build-essential python3-dev python-dev libssl-dev swig

About Porting Python 2 Code to Python 3 recommendations read:

https://docs.python.org/3/howto/pyporting.html

Porting all this repos is a lot of work. To be more productive, a uniform boilerplate has been added to all the ported MozillaCloud components listed here. For this, the boilerplate brings and uniform build/deploy/test environment, which builds and runs tests in isolated Py2 and Py3 virtualenv. The tests are running completely on developer's local workstation (CI without remotes). Such a boilerplate assembles from:

virtualenv --> providing isolated environments for builds
pylint     --> providing lint
tox        --> providing automated tests locally
pytest     --> providing the test framework

To be convenient, mostly a Makefile provide some targets.:

build      - build virtualenv (./local/py3) and install *developer mode*
lint       - run pylint within "build" (developer mode)
test       - run tests for all supported environments (tox)
dist       - build packages in "dist/"
pypi       - upload "dist/*" files to PyPi
clean-dist - remove most generated files

A typical Python 2/3 compatibility round-trip is as simple like:

1. modify/fix *.py files
2. make lint ... on errors go back to 1.
3. make test ... this tests in Py27 and Py35 ... on errors go back to 1.
4. commit to origin's six branch

Status

ATM following submodules has been added:

• hawkauthlib
  • status: merged upstream
  • old-origin: https://github.com/return42/hawkauthlib six
  • upstream: https://github.com/mozilla-services/hawkauthlib master
• tokenlib
  • status: merged upstream
  • old-origin: https://github.com/return42/tokenlib six
  • upstream: https://github.com/mozilla-services/tokenlib master
• konfig
  • status: merged upstream
  • old-origin: https://github.com/return42/konfig six
  • upstream: https://github.com/mozilla-services/konfig master
• pyramid_hawkauth
  • status: merged upstream
  • origin: https://github.com/return42/pyramid_hawkauth six
  • upstream: https://github.com/mozilla-services/pyramid_hawkauth master
• mozservices
  • status: origin/six passed Py27 & Py35 tests
  • origin: https://github.com/return42/mozservices six
  • upstream: https://github.com/mozilla-services/mozservices master
• PyBrowserID
  • status: origin/six passed Py27 & Py35 tests
  • origin: https://github.com/return42/PyBrowserID six
  • upstream: https://github.com/mozilla/PyBrowserID master
• syncserver
  • status: origin/six WIP
  • origin: https://github.com/return42/syncserver six
  • upstream: https://github.com/mozilla-services/syncserver master
• server-syncstorage
  • status: origin/six WIP
  • origin: https://github.com/return42/server-syncstorage six
  • upstream: https://github.com/mozilla-services/server-syncstorage master
• tokenserver
  • status: origin/six passed Py27 & Py35 tests
  • origin: https://github.com/return42/tokenserver six
  • upstream: https://github.com/mozilla-services/tokenserver master

Additional repos

For the Py3 movement, some sub-requirements has to be ported also.

• m2crypto

  • status: Version 0.28.0 or newer support Python 2.7 and 3.3-3.6

  M2Crypto is needed by PyBrowserID. In the long term, we should replace M2crypto with https://cryptography.io