colors - matplotlib: plot and get_color? -

Is it possible to get a list of colors used in the plot? Consider this example:

  line1 = ax1.plot (x1, y1) line2 = ax1.plot (x2, y2)   
 How do I now Set color  
  plt.setp (line1, 'color', 'red') plt.setp (line 2, 'color', 'red')   
 But is there a way to know which color has been used? Plt.getp (line1, 'color') does not work and complains that  
  attributeError: there is no attribute in the 'list' object 'get_color'   
 
 
 OK, got an answer: Plot () returns a list of call lines, color is the right way to query  
  print line 1 [0] .get_color ()