问题
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 cell.
回答1:
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.
回答2:
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
回答3:
This is the solution if you have Vimium installed. just add rule to ignore B, attached
Add all the shortcuts you want to work (hit esc key prior to every command):
- shift + enter run cell, select below.
- ctrl + enter run cell.
- option + enter run cell, insert below.
- A insert cell above.
- b/B insert cell below.
- C copy cell.
- V paste cell.
- D , D delete selected cell.
回答4:
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.
回答5:
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.)
来源：https://stackoverflow.com/questions/38195536/jupyter-shortcut-not-working