Matplotlib color cycler indexing

matplotlib_color_cycler.py

cycle = plt.rcParams['axes.prop_cycle'].by_key()['color']

import numpy as np
import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.add_subplot(111)

t = np.arange(5)
for i in range(4):
    line, = ax.plot(t,i*(t+1), linestyle = '-')
    ax.plot(t,i*(t+1)+.3,color = line.get_color(), linestyle = ':')


fig = plt.figure()
ax = fig.add_subplot(111)
t = np.arange(5)
cmap = plt.get_cmap("tab10")
for i in range(4):
    ax.plot(t,i*(t+1),   color=cmap(i), linestyle = '-')
    ax.plot(t,i*(t+1)+.3,color=cmap(i), linestyle = ':')

plt.show()