try: from tkinter import * from tkinter.ttk import *except ImportError : print("exception in importing module")
class MyWindow(Frame):
def CreateUI(self): tv = Treeview(self) tv['columns'] = ('Name', 'Mobile', 'course') tv.heading("#0", text='RollNo', anchor='w') tv.column("#0", anchor="w") tv.heading('Name', text='Name') tv.column('Name', anchor='center', width=100) tv.heading('Mobile', text='Mobile') tv.column('Mobile', anchor='center', width=100) tv.heading('course', text='course') tv.column('course', anchor='center', width=100) tv.grid(sticky = (N,S,W,E)) self.treeview = tv self.grid_rowconfigure(0, weight = 1) self.grid_columnconfigure(0, weight = 1)root = Tk()MyWindow(root)root.mainloop()