We have python scripts in the tools/ dir the vast majority of which we
run regularly with python3 via our python3 default basepython in tox.
However, most of these use a `python` shebang line which can be
confusing as to whether or not these scripts run under python3 or not.
To make this more clear set them to python3. I've confirmed the scripts
running under tox are happy with these changes. For the ones that don't
run under tox I've done a quick review and they look happy too.
Change-Id: I983d23c33f7780e5708aa728c829c3262fc99ea0
Since the Zuul v2 files are removed, we can lint pep8 with less changes
everywhere. Enable pep8 linting everywhere and fix remaining problems.
Depends-On: Id67d0149b645bd23e460cef65719541f76f0967b
Change-Id: I0ac0709b05912d00d02a51d732b1cf12eaf888a5
Add a tool to fill in missing bits in main.yaml from projects.yaml.
Use ruamel.yaml instead of pyyaml so that comments are preserved. It has
configurable indentation settings too - but the one with the format we
want adds 2 initial spaces to everything because the top element is a
list. (Well, except for the comment lines) So we still have to do a hack
at the end to make it suck less - but it's not MUCH of a hack, so
whatever.
Change-Id: I5e2da6f47fb7196c64c0c1b476d7e58c4d76be81
