i just remade the xeus-python env from scratch and got the same issue. i'm getting some strange behaviour - i'm testing a xeus-python environment, in a jupyterlab notebook, if i type from ...
Displays the object as a side effect; the return value is ignored. If this is defined, all other display methods are ignored. It seems _ipython_display_ is ignored in ipython: $ ipython Python 3.7.4 ...