The solution to check if a version is installed is not enough for CI. We
often have python2 installed, but not onfigured.

This patch stops the behaviour to run both versions, a caller must now
call the script twice to check both pythons versions. It's not perfect,
but probably easier to understand

ntome authored Jul 26, 2017 and Romain Bignon committed Aug 30, 2017

Also, declare as python3 compatible.

hydrargyrum authored Jul 16, 2017 and Romain Bignon committed Jul 16, 2017

Also, fix missed warnings due to pyflakes.sh bug.
And ignore /deprecated/ in python3.

Fill PYTHON2 and PYTHON3 variables. Allow override of everything.
Favor the generic version name because we expect the "better"
python2/python3 version to be set by the distribution.

This is starting to get quite repetitive though.

Always run Python scripts through the same interpreter.
Also simplify the running of pyflakes and flake8, as recent versions all
support execution through python -m. Due do the many variations among
distributions, it makes the whole thing much simpler.

ntome authored Jun 26, 2017 and Romain Bignon committed Jul 08, 2017

Since not all modules are Python3-compatible, don't emit warnings for
all. They should be declared in a dedicated file.
All modules are checked in Python2 though.

This will generate a lot of warnings on modules since they are not
python3-compatible yet.
Use the same flag for run_tests, and use python3 by default for weboob_lint.