We need to bump the testsuite image versions to use the new
pycodestyle update that allows excluding file paths, so that we can
exclude generated python code.

Javier Jardón authored Aug 10, 2018 and Tristan Maat committed Jan 02, 2019

pep8 package was renamed to pycodestyle to reduce confusion.

Disabled warnings:
W504 - Line break after binary operator (seems people like this)
W605 - Invalid escape sequence (some of our regexes use these)

Use pycodestyle instead pep8 python module

See merge request !638