No tab suggestions in Jupyter Lab console/notebook

[munael]

Coconut kernels in the latest Jupyter Lab (console and notebook) do not show any suggestions on tab press. Proper Python works fine.

What logs/configs should I bring to you here?

[hoishing]

same here, losing code completion in jupyter does affect productivity / usability... hope it can be fixed soon 🙏

[hoishing]

Just found a work-around about it. Seems the code completion problem is caused by the jupyter-console module not supporting prompt-toolkit 2.0 yet. So downgrading prompt-toolkit to 1.0.15 could help.

If you use conda to install the packages, you may downgrade it by:

conda install prompt_toolkit=1.0.15

3 packages will be downgraded together

ipython: 7.2.0-py36h39e3cac_0 --> 6.5.0-py36_0
jupyter_console: 6.0.0-py36_0 --> 5.2.0-py36_1
prompt_toolkit: 2.0.7-py36_0 --> 1.0.15-py36haeda067_0

then restart jupyter and the code completion is back 🎉

[munael]

Just found a work-around about it. Seems the code completion problem is caused by the jupyter-console module not supporting prompt-toolkit 2.0 yet. So downgrading prompt-toolkit to 1.0.15 could help.

If you use conda to install the packages, you may downgrade it by:

conda install prompt_toolkit=1.0.15

3 packages will be downgraded together

ipython: 7.2.0-py36h39e3cac_0 --> 6.5.0-py36_0
jupyter_console: 6.0.0-py36_0 --> 5.2.0-py36_1
prompt_toolkit: 2.0.7-py36_0 --> 1.0.15-py36haeda067_0

then restart jupyter and the code completion is back 🎉

According to jupyter/jupyter_console#158 , it should actually be fixed with the combination you had at first, so this very weird.

[evhub]

@narfanar @hoishing This should now be fixed on coconut-develop. Just pip install -U coconut-develop to get the latest version.