q.py

   1 from sympy import *
   2
   3 x = Symbol("x")
   4 y = Symbol("y")
   5 z = Symbol("z")
   6 a = Symbol("x")
   7
   8 #print x+y == x+y
   9 b = ( (x+y+z+1)**8 ).expand()
  10
  11 print b