In the Jupyter Notebook environment, when you are typing a function in the code cell window, what is the keyboard shortcut to bring up the on-line help for that function?

Question

In the Jupyter Notebook environment, when you are typing a function in the code cell window, what is the keyboard shortcut to bring up the on-line help for that function?

BlackTom AI · Accepted Answer

In the Jupyter Notebook environment, accessing inline help for a function while typing in a code cell is commonly done via a keyboard shortcut that summons a tooltip with documentation.
Option 1: 'Shift - Tab' — This is the canonical shortcut for opening the on-line (tooltip) help for the function under the cursor. Repeated presses can cycle through different levels of detail or open a full help modal depending on the interface, but the essential action is correct here.
Option 2: 'Shift - Space bar' — This combination does not trigger the function help tooltip; Shift plus Space is not the standard key binding for tooltips and may be captured by other browser or notebook actions, leading to no help popup.
Option 3: 'Control - H' — In many applications, Ctrl+H is used for history or replace-like features, not for function help in notebooks. In Jupyter, Ctrl+H is not the recognized shortcut for bringing up the function help tooltip.
Option 4: 'Shift - H' — This is not a documented shortcut for inline help in Jupyter notebooks. It does not align with the known keybinding conventions for showing tooltips and would not reliably display the function’s online help.
Therefore, option 1 ('Shift - Tab') is the correct choice because it matches the widely used shortcut to invoke the inline help tooltip for the function under editing in a Jupyter code cell. The other options do not correspond to the standard tooltip-access shortcut and are thus incorrect.

In the Jupyter Notebook environment, when you are typing a function in the code cell window, what is the keyboard shortcut to bring up the on-line help for that function?单项选择题

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