Python 3 compatibility

As Python 2.7 has less than 12 months to go, I was wondering if there are any plans to make Gaudi compatible with Python 3 (>= 3.6).

If there are no plans, would you accept an MR with such changes?

There was an attempt about a year ago, maybe some of that is still salvageable...

Thanks for the pointer! It is quite the long list of changes, I would probably introduce more adiabatic changes through multiple merge requests for easier review.

While transitions for print and similar are trivial, things like iteritems() → items() have side effects for Python 2 that you probably don't want.

What is Gaudi's policy for python requirements? I.e. if a new dependency, here the six module (https://pythonhosted.org/six), would be added?

Hi @kreczko,

in the current state Gaudi can only rely on the python packages available in SFT LCG builds (for example http://lcginfo.cern.ch/release/94/ and http://lcginfo.cern.ch/release/94python3/). six,in particular, is already present.

Cheers Marco

That's good news, thank you!

mentioned in merge request !545 (closed)

mentioned in merge request !832 (merged)

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changed milestone to %v32r2

closed via merge request !875 (merged)

mentioned in commit be580110