Py_Split

 from tkinter import *

root = Tk()

#window = Tk()

var = StringVar()

label = Label( root, textvariable = var, relief = RAISED )

root.geometry("300x180")

#var.set("Hey!? How are you doing?")

#<Run|MPos:30.968,0.000,0.000|FS:1500,0|WCO:0.000,0.000,0.000>

BT = "<Run|MPos:40.575,0.000,0.000|FS:900,0|WCO:60.000,0.000,0.000>\r\n"

var1 ="<Run|MPos:40.575,0.000,0.000|FS:900,0|WCO:60.000,0.000,0.000>\r\n"

val= "<Run|MPos:40.575,0.000,0.000|FS:900,0|WCO:60.000,0.000,0.000>\r\n"

x = str.split(",")

print('x')

print('Y')

print('z')

print ("var1[10]: ", var1[13])

print ("BT[17]: ", BT[17])

print ("val[23]:", val[23])

print ("X : ", var1[10:16])

print ("y : ", BT[17:22])

print ("z : ", val[23:28])

X_Axis = var1[10:16]

Y_Axis = BT [17:22]

Z_Axis = val[23:28]

#print (X_Axis,Y_Axis,Z_Axis)

print (X_Axis)

print (Y_Axis)

print (Z_Axis)

var.set(X_Axis)

var.set(Y_Axis)

var.set(Z_Axis)

label.pack()

root.mainloop()