** Description changed:
+ Impact: Python code using pkg_resources where the code uses wadllib (or
+ launchpadlib) will spuriosly fail, causing problems in other packages.
+ Development fix: cjwatson is fixing as part of his Python 3 port.
+ Stable fix: drop the requirement from the requires.txt, as it is not doing
anything
+ and only breaking code. elementtree is merged in to Python as of 2.6, and
having
+ then entry won't change what is installed on Ubuntu.
+ Test case:
+ 1. Install python-wadllib from lucid.
+ 2. Check that "elementtree" is listed in
/usr/share/pyshared/wadllib-1.1.4.egg-info/requires.txt
+ 3. Install python-wadllib from lucid-proposed
+ 4. Check that "elementtree" is no-longer listed in
/usr/share/pyshared/wadllib-1.1.4.egg-info/requires.txt
+ Regression potential: very low, as the line was redundant.
+
Binary package hint: python-wadllib
With the python-wadllib in maverick installed, the following code fails:
-
- Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56)
+ Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from pkg_resources import require
>>> require("wadllib")
Traceback (most recent call last):
- File "<stdin>", line 1, in <module>
- File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 654, in
require
- needed = self.resolve(parse_requirements(requirements))
- File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 552, in
resolve
- raise DistributionNotFound(req)
+ File "<stdin>", line 1, in <module>
+ File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 654, in
require
+ needed = self.resolve(parse_requirements(requirements))
+ File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 552, in
resolve
+ raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: elementtree
- >>>
+ >>>
It is because `/usr/share/pyshared/wadllib-1.1.4.egg-info/requires.txt`
contains `elementtree`, but in fact `elementree` is not used when the
user is using python >= 2.5
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https://bugs.launchpad.net/bugs/681394
Title:
existing dependency on elementree at python level
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