martinRenou

As pointed out by @maartenbreddels, xeus-python was much faster than ipykernel to start https://github.com/voila-dashboards/voila/issues/417. But now that xeus-python depends on IPython and imports it when starting, xeus-python might suffer from...

I got an error while processing complete request ``` ERROR: received bad message: TypeError: is_definition() got an unexpected keyword argument 'include_setitem' At: /home/martin/miniconda3/envs/xeus-python/lib/python3.7/site-packages/jedi/inference/filters.py(66): Message content: {"code":"fig.can","cursor_pos":7} ```

Performance benchmarks

1

We should try to run benchmarks against ipykernel. And see if statically linking to Pythonlibs can improve performance.

``` /home/travis/build/QuantStack/xeus-python/src/xutils.cpp: In function ‘zmq::message_t xpyt::pybytes_to_zmq_message(pybind11::bytes)’: /home/travis/build/QuantStack/xeus-python/src/xutils.cpp:52:45: warning: conversion to ‘size_t {aka long unsigned int}’ from ‘Py_ssize_t {aka long int}’ may change the sign of the result [-Wsign-conversion] return zmq::message_t(buffer,...

https://github.com/jupyter-widgets/ipywidgets/blob/3b2e20d00b7e8efdf7665b23eed13f2e3de0cc21/packages/schema/messages.md#control-widget-messaging-protocol-version-10

Provide a texture component, with default or user-defined texture mapping

We should be able to easily provide a skydome texture to the scene

We should expose the scene's background property to Python and allow changing the skybox.