# Jupyter not giving TAB completions and also gving the error "NotImplementedError"

**URL:** <https://discourse.jupyter.org/t/jupyter-not-giving-tab-completions-and-also-gving-the-error-notimplementederror/3234>\
**Category:** General\
**Tags:** how-to\
**Created:** [February 3, 2020, 4:16am UTC](https://discourse.jupyter.org/t/jupyter-not-giving-tab-completions-and-also-gving-the-error-notimplementederror/3234 "2020-02-03T04:16:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Varuna](https://avatars.discourse-cdn.com/v4/letter/v/e99b99/32.png) [@Varuna](https://discourse.jupyter.org/u/Varuna)\
**Post date:** [February 3, 2020, 4:16am UTC](https://discourse.jupyter.org/t/jupyter-not-giving-tab-completions-and-also-gving-the-error-notimplementederror/3234/1 "2020-02-03T04:16:21Z")

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iPython and Jupyter notebook were installed using` pip`. Jupyter notebook gets started by the command `jupyter notebook` in the default browser’s active tab. But notebook session that gets started doesn’t have TAB competitions and also jupyter gives the error “NotImplementedErro”

How to get TAB completions enabled?  
How to get rid of the error NotImplementedError