On 21-2-2018 01:09, Ken Dreyer wrote:
On Tue, Feb 20, 2018 at 3:20 AM, Nathan Cutler <ncutler@xxxxxxx> wrote:
Work is now ongoing to gradually wean Ceph off Python 2.
Currently, Python 2 is a hard requirement - Ceph will not work smoothly
without it. The goal is to change this so that Python 3 is required and
Python 2 is optional.
We have Ceph building in environments without Python 2, but it does not yet
pass "make check". One of the reasons (and possibly the only reason) for the
"make check" failure is that several test scripts have a shebang
"#!/usr/bin/env python" which of course fails in a Python 3-only
environment.
(Yes, there *might* be a symlink from python -> python3, but this is not
assured and SUSE, at least, is not going in this direction.)
Generalizing, how is SUSE handling all upstream projects that have
"#!/usr/bin/env python"? Are you patching all of those to
#!/usr/bin/python3 ?
Please don't....
Since python, be it 2 or 3 doesn't live in /usr/bin/ on all systems...
And the shebang is the perfect tool to fix that, so please don't start
reverting this too, if ever ceph wants to stay a bit portable...
In a more extreem extend I would even suggest as much as writing a
python selector of a kind so the shebang would be like:
#/usr/bin/env python-version-select
And then set an ENV like: PYTHON_VER_REQ=3 or something of the kind.
Or any other preferred why of selecting the choice of day.
--WjW
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
