[Debian-astro-maintainers] Bug#896262: python-aplpy: aplpy fails to import
Helmut Grohne
helmut at subdivi.de
Fri Apr 20 21:00:34 BST 2018
Package: python-aplpy
Version: 1.1.1-1
Severity: serious
User: helmutg at debian.org
Usertags: python-import
After installing python-aplpy importing the module aplpy
into a python interpreter fails with the following error:
/usr/lib/python2.7/dist-packages/astropy/config/configuration.py:541: ConfigurationMissingWarning: Configuration defaults will be used due to OSError:2 on None
warn(ConfigurationMissingWarning(msg))
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/aplpy/__init__.py", line 14, in <module>
from .core import FITSFigure
File "/usr/lib/python2.7/dist-packages/aplpy/core.py", line 13, in <module>
import matplotlib.pyplot as mpl
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 115, in <module>
_backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/__init__.py", line 62, in pylab_setup
[backend_name], 0)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 4, in <module>
from . import tkagg # Paint image to Tk photo blitter extension.
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/tkagg.py", line 5, in <module>
from six.moves import tkinter as Tk
File "/usr/lib/python2.7/dist-packages/six.py", line 203, in load_module
mod = mod._resolve()
File "/usr/lib/python2.7/dist-packages/six.py", line 115, in _resolve
return _import_module(self.mod)
File "/usr/lib/python2.7/dist-packages/six.py", line 82, in _import_module
__import__(name)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 42, in <module>
raise ImportError, str(msg) + ', please install the python-tk package'
ImportError: No module named _tkinter, please install the python-tk package
The vast majority of import failures is attributed to missing dependencies.
Often times that manifests as an ImportError or ModuleNotFoundError.
Typically, dependencies should be inserted by dh-python via ${python:Depends}
or ${python3:Depends}. Thus a missing dependency can be caused by incomplete
install_requires in setup.py. Sometimes a missing dependency of a dependency
is the cause, in such cases this bug should be reassigned.
Helmut
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