Package: python-matplotlib
Version: 2.1.1-1
Severity: serious
Justification: Policy 3.5, packages must specify all dependencies
Dear Maintainer,
Thanks for the new version of matplotlib!
The new version of matplotlib introduces a dependency on
python-backports.functools-lru-cache for the Python 2 version of the
package. Omitting this package makes matplotlib more or less
unusable:
$ python -c "import matplotlib"
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 128, in
<module>
from matplotlib.rcsetup import defaultParams, validate_backend, cycler
File "/usr/lib/python2.7/dist-packages/matplotlib/rcsetup.py", line 29, in
<module>
from matplotlib.fontconfig_pattern import parse_fontconfig_pattern
File "/usr/lib/python2.7/dist-packages/matplotlib/fontconfig_pattern.py",
line 32, in <module>
from backports.functools_lru_cache import lru_cache
ImportError: No module named backports.functools_lru_cache
The code in question does:
try:
from functools import lru_cache
except ImportError:
from backports.functools_lru_cache import lru_cache
python-backports.functools-lru-cache is included in the build-dependencies
and so the build-time tests pass, but the package tests do not:
https://ci.debian.net/packages/m/matplotlib/unstable/amd64/
cheers
Stuart
