Ipython Notebook: Elegant way of turning off part of cells?

Using Jupyter notebook you can click on a cell, press esc and then r. That converts it to a "raw" cell. Similar thing can be done to convert it back, esc + y. No comments needed, just key presses.

Within Jupyer notebook, go to Help -> Keyboard shortcuts for more.

Here's a snippet:

Command Mode (press Esc to enable)

• ↩ : enter edit mode

• ⇧↩ : run cell, select below

• ⌃↩ : run cell

• ⌥↩ : run cell, insert below

• y : to code

• m : to markdown

• r : to raw

You can use a condition at the cost of one extra indentation.

cellEnabled = 0
#cellEnabled = 1

if cellEnabled:
    doA()
    doB()

In Jupyter notebooks one can use this magic preamble at the beginning of a cell to avoid its execution:

%%script false --no-raise-error