Showing line numbers in IPython/Jupyter Notebooks

python ipython jupyter
Ruggero Turra picture Ruggero Turra · Jun 11, 2012 · Viewed 135.4k times · Source

Error reports from most language kernels running in IPython/Jupyter Notebooks indicate the line on which the error occurred; but (at least by default) no line numbers are indicated in Notebooks.

Is it possibile to add the line numbers to IPython/Jupyter Notebooks?

Answer

minrk picture minrk · Jun 11, 2012

CTRL - ML toggles line numbers in the CodeMirror area. See the QuickHelp for other keyboard shortcuts.

In more details CTRL - M (or ESC) bring you to command mode, then pressing the L keys should toggle the visibility of current cell line numbers. In more recent notebook versions Shift-L should toggle for all cells.

If you can't remember the shortcut, bring up the command palette Ctrl-Shift+P (Cmd+Shift+P on Mac), and search for "line numbers"), it should allow to toggle and show you the shortcut.

Related questions

Inserting image into IPython notebook markdown

I am starting to depend heavily on the IPython notebook app to develop and document algorithms. It is awesome; but there is something that seems like it should be possible, but I can't figure out how to do it: I …

Read More
How to load/edit/run/save text files (.py) into an IPython notebook cell?

I've recently moved over to using IPython notebooks as part of my workflow. However, I've not been successful in finding a way to import .py files into the individual cells of an open IPython notebook so that they can edited, …

Read More
Simple way to measure cell execution time in ipython notebook

I would like to get the time spent on the cell execution in addition to the original output from cell. To this end, I tried %%timeit -r1 -n1 but it doesn't expose the variable defined within cell. %%time works for …

Read More