How to fix the window width in tkinter, and leave the height to change depending on the information displayed in the window?

Question

Python

Now the window is set like this:

window = Tk()
window.geometry()
window.resizable(width=False, height=False)

The height and width change depending on what is displayed in the window, but I need the width to be fixed, let's say 400, and the height also change depending on the content.