Public bug reported:
Symptoms:
After upgrade from ubuntu 16.04 ,the module matplotlib doesn't import into
python (default python 2.7), anymore. A module is reported missing although
it's installed:
Expected outcome:
import matplotlib works without error
Steps to reproduce:
$ lsb_release -rd
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
$ python
Python 2.7.15rc1 (default, Apr 15 2018, 21:51:34)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 127, 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
>>>
$ sudo apt install python-backports.functools-lru-cache
Reading package lists... Done
Building dependency tree
Reading state information... Done
python-backports.functools-lru-cache is already the newest version (1.4-2).
python-backports.functools-lru-cache set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: python-matplotlib 2.1.1-2ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
Date: Tue Apr 17 20:14:37 2018
InstallationDate: Installed on 2014-05-20 (1427 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64
(20140416.2)
SourcePackage: matplotlib
UpgradeStatus: Upgraded to bionic on 2018-04-17 (0 days ago)
** Affects: matplotlib (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
** Description changed:
Symptoms:
-
- In python (using default python 2.7) the command matplotlib doesn't
- import. A module is reported missing although it's installed:
+ After upgrade from ubuntu 16.04 ,the module matplotlib doesn't import into
python (default python 2.7), anymore. A module is reported missing although
it's installed:
Expected outcome:
import matplotlib works without error
Steps to reproduce:
$ lsb_release -rd
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
$ python
- Python 2.7.15rc1 (default, Apr 15 2018, 21:51:34)
+ Python 2.7.15rc1 (default, Apr 15 2018, 21:51:34)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
Traceback (most recent call last):
- File "<stdin>", line 1, in <module>
- File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 127,
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
+ File "<stdin>", line 1, in <module>
+ File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 127,
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
>>>
$ sudo apt install python-backports.functools-lru-cache
Reading package lists... Done
- Building dependency tree
+ Building dependency tree
Reading state information... Done
python-backports.functools-lru-cache is already the newest version (1.4-2).
python-backports.functools-lru-cache set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: python-matplotlib 2.1.1-2ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
Date: Tue Apr 17 20:14:37 2018
InstallationDate: Installed on 2014-05-20 (1427 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64
(20140416.2)
SourcePackage: matplotlib
UpgradeStatus: Upgraded to bionic on 2018-04-17 (0 days ago)
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https://bugs.launchpad.net/bugs/1764823
Title:
[bionic] python-matplotlib import fails
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