Python · GUIs with tkinter

What is wrong with this button? ``` def greet(): print("hi") b = tkinter.Button( root, text="Go", command=greet()) ```

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More in GUIs with tkinter

Which GUI toolkit can you import and use without installing anything beyond a standard CPython install?

You build a full tkinter window — root, labels, buttons — and run the script. Nothing appears and the program exits instantly. What's missing?

In one tkinter container you call .pack() on one widget and .grid() on another. What happens?

You create a tkinter.Label(root, text="Hi") but never call .pack(), .grid(), or .place() on it. Does it show?

Name tkinter's three geometry managers and the one-line rule for choosing between them.

What does side do in widget.pack(side="left"), and what does a widget packed with side="left" occupy?

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