import random
tableau20_int = [(31, 119, 180), (174, 199, 232), (255, 127, 14), (255, 187, 120),
(44, 160, 44), (152, 223, 138), (214, 39, 40), (255, 152, 150),
(148, 103, 189), (197, 176, 213), (140, 86, 75), (196, 156, 148),
(227, 119, 194), (247, 182, 210), (127, 127, 127), (199, 199, 199),
(188, 189, 34), (219, 219, 141), (23, 190, 207), (158, 218, 229)]
tableau20 = ['rgb({:d},{:d},{:d})'.format(r,g,b) for (r,g,b) in tableau20_int]
[docs]def get_next_color(previous_colors):
num_used_colors = len(previous_colors)
if num_used_colors < 20:
return tableau20[num_used_colors]
else:
r = random.randint(0, 255)
g = random.randint(0, 255)
b = random.randint(0, 255)
new_color = 'rgb({:f},{:f},{:f})'.format(r,g,b)
if new_color in previous_colors:
return get_next_color(previous_colors)
else:
return new_color