Jupyter Shortcut not working

Question

I am working my code on Jupyter(Python). Normally, the shortcut to insert cell below is \'b\' and for above is \'a\', but when I do that search bar opens instead of insertion of

Answer 1

Your issue is probably because of your browser settings. b must be set to something else or you are not on command mode.

Jupyter shortcuts:

Command Mode (press Esc to enable)

Enter : enter edit mode

Shift-Enter : run cell, select below

Ctrl-Enter : run cell

Alt-Enter : run cell, insert below

Y : to code

M : to markdown

R : to raw

1 : to heading 1

2 : to heading 2

3 : to heading 3

4 : to heading 4

5 : to heading 5

6 : to heading 6

Up : select cell above

K : select cell above

Down : select cell below

J : select cell below

A : insert cell above

B : insert cell below

X : cut selected cell

C : copy selected cell

Shift-V : paste cell above

V : paste cell below

Z : undo last cell deletion

D,D : delete selected cell

Shift-M : merge cell below

S : Save and Checkpoint

Ctrl-S : Save and Checkpoint

L : toggle line numbers

O : toggle output

Shift-O : toggle output scrolling

Esc : close pager

Q : close pager

H : show keyboard shortcut help dialog

I,I : interrupt kernel

0,0 : restart kernel

Space : scroll down

Shift-Space : scroll up

Shift : ignore

---

Edit Mode (press Enter to enable)

Tab : code completion or indent

Shift-Tab : tooltip

Ctrl-] : indent

Ctrl-[ : dedent

Ctrl-A : select all

Ctrl-Z : undo

Ctrl-Shift-Z : redo

Ctrl-Y : redo

Ctrl-Home : go to cell start

Ctrl-Up : go to cell start

Ctrl-End : go to cell end

Ctrl-Down : go to cell end

Ctrl-Left : go one word left

Ctrl-Right : go one word right

Ctrl-Backspace : delete word before

Ctrl-Delete : delete word after

Esc : command mode

Ctrl-M : command mode

Shift-Enter : run cell, select below

Ctrl-Enter : run cell

Alt-Enter : run cell, insert below

Ctrl-Shift-Subtract : split cell

Ctrl-Shift-- : split cell

Ctrl-S : Save and Checkpoint

Up : move cursor up or previous cell

Down : move cursor down or next cell

Shift : ignore

Answer 2

Not quite on topic of the question text but I got here from the title of the question. If you're on MacOS I noticed that the frequently used run-cells shortcut recently (I'm using notebook v6.1.1) changed from the original (Ctrl+Enter) to ⌘+Enter. You can check/change the current keyboard mappings from the Help menu in Jupyter. And the keyboard mappings are shown for a (and b) under the Insert menu.

Answer 3

I had this issue and it turned out that my Chrome plugin (Vimium) was intercepting keypresses before Jupyter could capture them.

In my case, I just added a rule to the plugin to disable it on my common notebook urls, like localhost:8888.

There are potentially other plugins that might exhibit the same behavior, so generally I'd try opening a window without any plugins activated and see if the unexpected behavior persists.

Answer 4

I meet the same problem, and I google it. I found answer from here. You just update your jupyter through pip install -U jupyter. Maybe it works.(if you install jupyter from anaconda,you can use conda update jupyter command.)

Answer 5

I figured this out! It has to do with a chrome extension blocking your jupyter shortcuts. You can test this by opening http://localhost:8888/notebooks in another browser.

In my case, I'd installed a chrome extension called Vimium, which was messing everything up.

Answer 6

try to open the jupyter-lab from cmd, use this command :

jupyter notebook

it will start working normal and when you finished using these keys will help you to stop the application :

control + c