Example 1: matplotlib plot  import matplotlib . pyplot as plt fig =  plt . figure ( 1 ) 	#identifies the figure  plt . title ( "Y vs X" ,  fontsize = '16' ) 	#title plt . plot ( [ 1 ,  2 ,  3 ,  4 ] ,  [ 6 , 2 , 8 , 4 ] ) 	#plot the points plt . xlabel ( "X" , fontsize = '13' ) 	#adds a label in the x axis plt . ylabel ( "Y" , fontsize = '13' ) 	#adds a label in the y axis plt . legend ( ( 'YvsX' ) , loc = 'best' ) 	#creates a legend to identify the plot plt . savefig ( 'Y_X.png' ) 	#saves the figure in the present directory plt . grid ( ) 	#shows a grid under the plot plt . show ( )  Example 2: pyplot.plot  plot ( [ x ] ,  y ,  [ fmt ] ,  * ,  data = None ,  * * kwargs )  plot ( [ x ] ,  y ,  [ fmt ] ,  [ x2 ] ,  y2 ,  [ fmt2 ] ,  . . . ,  * * kwargs )