from tkinter.ttk import Notebook
class Natural_Notebook(Notebook):
def __init__(self, master, **kw):
Notebook.__init__(self, master, **kw)
self.bind("<<NotebookTabChanged>>", self._on_tab_changed)
def _on_tab_changed(self,event):
tab = event.widget.nametowidget(event.widget.select())
event.widget.configure(height=tab.winfo_reqheight())
if __name__== "__main__":
from tkinter import Frame
root = Tk()
notebook = Natural_Notebook(root)
notebook.add(Frame(notebook, width=400, height=200, name="a"),text="TAB 1")
notebook.add(Frame(notebook, width=400, height=300, name="b"),text="TAB 2")
notebook.add(Frame(notebook, width=400, height=100, name="c"),text="TAB 3")
notebook.pack()
root.mainloop()