On Mon, 2017-06-26 at 15:26 +0200, jan matejek wrote:
Fellow openSUSists,
this has been a long time coming, and I'd now like to start the actual process of switching the default Python implementation to Python 3 in Tumbleweed.
First of all, big thanks to everyone who is converting (or has converted) their packages to singlespec. That alone makes the Python 3 switch much easier than it would be otherwise.
Then, details.
When: * in the coming weeks. I'd like to do some tests and gather feedback before actually moving forward. A heads-up e-mail will come before anything is actually headed to TW.
Why: * Python 2 is very near its end of life [1], the vast majority of our stuff already works in python3. We want to have python3 as default in SLE 15, so now's a very good time to start.
What will happen: * `python` package will be renamed to `python2` and will obsolete/provide `python <= 2.7.13`
Thinks like 'osc' - yes head -n1 /usr/bin/osc #!/usr/bin/python imho, we should leave 'python' as an alias to 'python2' and accept that if there is no python2 installed, there is no 'python<unversioned>' available. Keep python3 as python3 and get python4 to be python4. The only sensible alternative I'd seen in this thread seemed the variant with u-a - where we could set py3 as default at one point and make it really easy (by means of yast, using the alternatives module) to switch back to py2 for the users. cheers, Dominique