Source: twisted
Version: 18.7.0-2
Severity: important
Dear Maintainer,
The python3-twisted package declares "Depends: python3-attr" however it is
not compatible with the version of python3-attr that is in stretch. This
means that partially upgraded systems could have a non-functional twisted
installation and also means that the upload of twisted to stretch-backports
is (partially?) broken.
To fix the partial-upgrade problem, a versioned dependency such as ">> 17.4.0"
is sufficient.
(Andrej, for stretch-backports, a backport of python-attrs fixes the problem.)
I also can't spot the twisted test suite being run in either the sid or the
stretch-backports build logs, is it possible to make the tests run on the
buildd? (Would that have caught this problem with the backport?)
cheers
Stuart
$ python3
Python 3.5.3 (default, Sep 27 2018, 17:25:39)
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import twisted.web.http
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3/dist-packages/twisted/web/http.py", line 100, in
<module>
from twisted.internet import interfaces, protocol, address
File "/usr/lib/python3/dist-packages/twisted/internet/address.py", line 23,
in <module>
class IPv4Address(object):
File "/usr/lib/python3/dist-packages/twisted/internet/address.py", line 37,
in IPv4Address
type = attr.ib(validator=attr.validators.in_(["TCP", "UDP"]))
AttributeError: module 'attr.validators' has no attribute 'in_'
$ apt-cache policy python3-twisted python3-attr
python3-twisted:
Installed: 18.7.0-2~bpo9+1
Candidate: 18.7.0-2~bpo9+1
Version table:
*** 18.7.0-2~bpo9+1 200
200 http://deb.debian.org/debian stretch-backports/main amd64 Packages
200 http://deb.debian.org/debian stretch-backports/main i386 Packages
100 /var/lib/dpkg/status
16.6.0-2 500
500 http://deb.debian.org/debian stretch/main amd64 Packages
500 http://deb.debian.org/debian stretch/main i386 Packages
python3-attr:
Installed: 16.3.0-1
Candidate: 16.3.0-1
Version table:
*** 16.3.0-1 500
500 http://deb.debian.org/debian stretch/main amd64 Packages
500 http://deb.debian.org/debian stretch/main i386 Packages
100 /var/lib/dpkg/status
