old_contents: import math as m #Import math library and use it as 'm'.
  n = 10;
  print n;
  """del(n); # Deletes object's reference.
  print n;""" # compilation error, because it's undefined after calling 'del'
  
  # Demonstrate some functions
  
  print abs(n); 
  print pow(n, 2); 
  print m.sqrt(n);
new_contents: import math as m #Import math library and use it as 'm'.
  import random as r
  n = 10;
  print n;
  """del(n); # Deletes object's reference.
  print n;""" # compilation error, because it's undefined after calling 'del'
  
  # Demonstrate some functions
  
  print abs(n); 
  print pow(n, 2); 
  print m.sqrt(n);
  print "random calling: ", r.random();
subject: add random