Edit IPython cell in an external editor

Question

It would be great to have a keyboard short-cut in IPython notebook, which would allow to edit the content of the current cell in an external editor (e.g. gvim). Maybe just copy

Answer 1

For people who find this question who are using the IPython terminal application, there is a keyboard shortcut built in which launches $EDITOR with the contents of the current cell. Saving and exiting the editor replaces (but does not yet execute) the contents of the cell with that of the saved file.

The default keyboard shortcut is the F2 key. This corresponds to the IPython setting IPython.terminal.shortcuts.open_input_in_editor.