The operation of the dictionary
# Simple dictionary alien_0 = { ' Color ' : ' Green ' , ' Point ' :. 5 } Print (alien_0 [ ' Color ' ]) Print (alien_0 [ ' Point ' ]) # Add pair alien_0 [ ' x_position ' ] = 0 alien_0 [ ' y_position ' ] = 25 Print (alien_0) # position of a moving at different speeds to track alien alien_0 = { ' x_position ': 0, ' y_position ' : 25, ' Speed ' : ' Medium ' } alien_0 [ ' Speed ' ] = ' FAST ' IF alien_0 [ ' Speed ' ] == ' SLOW ' : x_increment =. 1 elif alien_0 [ ' Speed ' ] == ' Medium ' : x_increment = 2 the else : # this speed must quickly alien =. 3 x_increment # new position equals the old position plus the incremental alien_0 [ ' x_position ' ] + = x_increment Print (STR (alien_0 [ ' x_position ' ]))