Showing line numbers in IPython Jupyter Notebooks

Question

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

User · Accepted Answer

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

User · Answer

Was looking for this  Shift-L in JupyterLab 1 0 0

User · Answer

To turn line numbers on by default in all cells at startup I recommend this link  I quote         Navigate to your jupyter config directory  which you can find by typing the following at the command line   jupyter --config-dir    From there  open or create the custom folder     In that folder  you should find a custom js file  If there isn   t one  you should be able to create one  Open it in a text editor and   add this code   define        base js namespace        base js events             function IPython  events            events on  app initialized NotebookApp               function                      IPython Cell options default cm config lineNumbers   true

User · Answer

On IPython 2 2 0  just typing l  lowercase L  on command mode  activated by typing Esc  works   See  Help  -  Keyboard Shortcuts  for other shortcuts   Also  you can set default behavior to display line numbers by editing custom js

User · Answer

1 press esc to enter the command mode 2 perss l it L in lowcase  to show the line number

User · Answer

Here is how to know active shortcut  depending on your OS and notebook version  it might change   Help  gt  Keyboard Shortcuts  gt  toggle line numbers  On OSX running ipython3 it was ESC L

User · Answer

Select the Toggle Line Number Option from the  View -  Toggle Line Number

User · Answer

In Jupyter Lab 2 1 5  it is View - gt  Show Line Numbers

User · Answer

For me  ctrl   m is used to save the webpage as png  so it does not work properly  But I find another way   On the toolbar  there is a bottom named open the command paletee  you can click it and type in the line  and you can see the toggle cell line number here

User · Answer

You can also find Toggle Line Numbers under View on the top toolbar of the Jupyter notebook in your browser  This adds removes the lines numbers in all notebook cells   For me  Esc l only added removed the line numbers of the active cell

[python] Showing line numbers in IPython/Jupyter Notebooks

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