With #656, we are now saving model structure while training.
However, it requires the graphviz package which can not be installed via pip.
Users may experience bugs in case the package was not installed.
Therefore we need to
Update the docs
Make this optional, in case of ImportError we print a warning and skip.
Subject of the issue
With #656, we are now saving model structure while training. However, it requires the
graphviz
package which can not be installed viapip
. Users may experience bugs in case the package was not installed.Therefore we need to
ImportError
we print a warning and skip.