Bug#910247: python3-netgen: importing netgen.gui fails due to MPI_Comm_size()

[Esokrates]

Package: python3-netgen
Version: 6.2.1804+dfsg1-1
Severity: important

Dear Maintainer,

When I try to import netgen.gui in python I observe the following:

user at debian:~$ ipython3 
Python 3.6.7rc1 (default, Sep 27 2018, 09:51:25) 
Type "copyright", "credits" or "license" for more information.

IPython 5.5.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: import netgen.gui
/usr/lib/python3.6/importlib/_bootstrap.py:219: FutureWarning: pybind11-bound class 'netgen.libngpy._csg.SplineSurface' is using an old-style placement-new '__init__' which has been deprecated. See the upgrade guide in pybind11's docs. This message is only visible when compiled in debug mode.
  return f(*args, **kwds)
/usr/lib/python3.6/importlib/_bootstrap.py:219: FutureWarning: pybind11-bound class 'netgen.libngpy._csg.CSGeometry' is using an old-style placement-new '__init__' which has been deprecated. See the upgrade guide in pybind11's docs. This message is only visible when compiled in debug mode.
  return f(*args, **kwds)
/usr/lib/python3.6/importlib/_bootstrap.py:219: FutureWarning: pybind11-bound class 'netgen.libngpy._geom2d.SplineGeometry' is using an old-style placement-new '__init__' which has been deprecated. See the upgrade guide in pybind11's docs. This message is only visible when compiled in debug mode.
  return f(*args, **kwds)
optfile ./ng.opt does not exist - using default values
togl-version : 2
OCC module loaded
*** The MPI_Comm_size() function was called before MPI_INIT was invoked.
*** This is disallowed by the MPI standard.
*** Your MPI job will now abort.
[debian-sid:10596] Local abort before MPI_INIT completed completed successfully, but am not able to aggregate error messages, and not able to guarantee that all other processes were killed!
user at debian:~$ 

Therefore I can't really make use of the package.


-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-netgen depends on:
ii  libc6                            2.27-6
ii  libgcc1                          1:8.2.0-7
ii  libgl1                           1.1.0-1
ii  libglu1-mesa [libglu1]           9.0.0-2.1
ii  libmetis5                        5.1.0.dfsg-5+b2
ii  libnglib-6.2.1804                6.2.1804+dfsg1-1
ii  libocct-data-exchange-7.3        7.3.0+dfsg1-3
ii  libocct-foundation-7.3           7.3.0+dfsg1-3
ii  libocct-modeling-algorithms-7.3  7.3.0+dfsg1-3
ii  libocct-modeling-data-7.3        7.3.0+dfsg1-3
ii  libocct-ocaf-7.3                 7.3.0+dfsg1-3
ii  libocct-visualization-7.3        7.3.0+dfsg1-3
ii  libopenmpi3                      3.1.2-5
ii  libpython3.6                     3.6.7~rc1-1
ii  libstdc++6                       8.2.0-7
ii  libxmu6                          2:1.1.2-2
ii  python3                          3.6.6-1
ii  zlib1g                           1:1.2.11.dfsg-1

python3-netgen recommends no packages.

python3-netgen suggests no packages.

-- no debconf information