Driver Code
if __name__ == ' _ _ main _ _ ' : NEW_LINE INDENT root = newNode ( 1 ) NEW_LINE root . left = newNode ( 2 ) NEW_LINE root . right = newNode ( 3 ) NEW_LINE root . left . left = newNode ( 4 ) NEW_LINE root . left . right = newNode ( 5 ) NEW_LINE root . right . left = newNode ( 6 ) NEW_LINE root . right . right = newNode ( 7 ) NEW_LINE root . right . left . right = newNode ( 8 ) NEW_LINE sum = addBT ( root ) NEW_LINE print ( " Sum ▁ of ▁ all ▁ the ▁ nodes ▁ is : " , sum ) NEW_LINE DEDENT