On 02/05/2018 12:47 PM, Guido Aulisi wrote:
2018-02-05 12:00 GMT+01:00 Petr Viktorin <pvikt...@redhat.com>:
On 02/05/2018 09:32 AM, Guido Aulisi wrote:
Hi,
according to latest python guides, we should avoid calling generic
unversioned python command
(https://fedoraproject.org/wiki/Changes/Avoid_usr_bin_python_in_RPM_Build#Quick_Opt-Out)
But what should we do if it's called inside waf? waf is provided
upstream, should we patch it to call either python2 or python3, or use
PYTHON_DISALLOW_AMBIGUOUS_VERSION=0?
I got this problem in recent ardour5 rawhide builds
(https://apps.fedoraproject.org/koschei/package/ardour5?collection=f28).
Now I'm seeing that builds are back to normal and python2 has been
downgraded.
Thanks
Thanks for the question, and sorry for the inconvenience!
The python2 message is, so far, only a warning. I see the log contains a
different error: "--freedesktop requires itstool > 2.0.0 to translate
files.".
Could you check if that's not causing the failure?
I found that the check for itstool fails because it gets the
deprecation warning as input, there's a mistake in
output = subprocess.Popen("itstool --version", shell=True,
stderr=subprocess.STDOUT,
stdout=subprocess.PIPE).communicate()[0].splitlines()
stderr is redirected to stdout, so itstool gets DEPRECATION and
version [u'WARNING:']
I will report this upstream, it seems to me that the redirection of
stderr is a mistake.
Ah! I see the problem now: /usr/bin/itstool has a /usr/bin/python
shebang. I've filed a pull request that should fix this:
https://src.fedoraproject.org/rpms/itstool/pull-request/1
[...]
It looks like waf will be one of the tougher things to figure out. After the
mass rebuild we'll see the effect on the whole distribution, and hopefully
come up with a better strategy for bundled waf.
I will file a bug for waf, if it's the correct thing to do.
If you can wait a bit until itstool maintainers merge the PR, that
should sort the problem out.
Let me know if you need this soon, I can look for a provenpackager.
--
Petr Viktorin
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