Still present in Ubuntu 18.04, using the python3.6 prompt in the shell:
```
>>> help('modules')
Please wait a moment while I gather a list of all available modules...
[ecc] warning: libsecp256k1 library not available, falling back to python-ecdsa
WARNING:root:can not import unity GI Namespace Dbusmenu not available
/usr/lib/python3/dist-packages/matplotlib/cbook/deprecation.py:106: MatplotlibDeprecationWarning: The mpl_toolkits.axes_grid module was deprecated in version 2.1. Use mpl_toolkits.axes_grid1 and mpl_toolkits.axisartist provies the same functionality instead.
warnings.warn(message, mplDeprecation, stacklevel=1)
Segmentation fault
```
No issue when doing the same thing with Python 3.7.1 provided by Anaconda.
Still present in Ubuntu 18.04, using the python3.6 prompt in the shell:
```
>>> help('modules')
Please wait a moment while I gather a list of all available modules...
[ecc] warning: libsecp256k1 library not available, falling back to python-ecdsa python3/ dist-packages/ matplotlib/ cbook/deprecati on.py:106: MatplotlibDepre cationWarning: The mpl_toolkits. axes_grid module was deprecated in version 2.1. Use mpl_toolkits. axes_grid1 and mpl_toolkits. axisartist provies the same functionality instead. warn(message, mplDeprecation, stacklevel=1)
WARNING:root:can not import unity GI Namespace Dbusmenu not available
/usr/lib/
warnings.
Segmentation fault
```
No issue when doing the same thing with Python 3.7.1 provided by Anaconda.