boolvar in tkinter code example
Example 1: tkinter datatypes
x = StringVar() # Holds a string; default value ""
x = IntVar() # Holds an integer; default value 0
x = DoubleVar() # Holds a float; default value 0.0
x = BooleanVar() # Holds a boolean, returns 0 for False and 1 for True
Example 2: stringvar
#declare variable -->
var = StringVar()
#sets variable to what ever(most the time a string)
var.set("hello")
#this is used in tkinter!