Bug#896206: python-sciscipy: scilab fails to import

[Helmut Grohne]

Package: python-sciscipy
Version: 1.0.1-2
Severity: serious
User: helmutg at debian.org
Usertags: python-import

After installing python-sciscipy importing the module scilab
into a python interpreter fails with the following error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/scilab.py", line 69, in <module>
    cdll.LoadLibrary("/usr/lib/scilab/libscilab.so.0")
  File "/usr/lib/python2.7/ctypes/__init__.py", line 444, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python2.7/ctypes/__init__.py", line 366, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /usr/lib/scilab/libscilab.so.0: cannot open shared object file: No such file or directory

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