How to remove python-sphinxcontrib.blockdiag from Debian 9 (Stretch)

Uninstall python-sphinxcontrib.blockdiag

To remove just python-sphinxcontrib.blockdiag package itself from Debian 9 (Stretch) execute on terminal:

sudo apt-get remove python-sphinxcontrib.blockdiag

To remove the python-sphinxcontrib.blockdiag package and any other dependant package which are no longer needed from Debian Stretch.

sudo apt-get remove --auto-remove python-sphinxcontrib.blockdiag

If you also want to delete configuration and/or data files of python-sphinxcontrib.blockdiag from Debian Stretch then this will work:

sudo apt-get purge python-sphinxcontrib.blockdiag

To delete configuration and/or data files of python-sphinxcontrib.blockdiag and it's dependencies from Debian Stretch then execute:

sudo apt-get purge --auto-remove python-sphinxcontrib.blockdiag