markers.py

import itertools
import matplotlib.pyplot as plt
import numpy as np

colors = itertools.cycle(['r','g','b','c','y','m','k'])
markers = itertools.cycle(['o','s','v'])

fig = plt.figure()
ax = fig.add_subplot(111)
for i in range(5):
   x = np.linspace(0, 2*np.pi)
   y = np.sin(x) + np.random.randn(*x.shape)
   ax.plot(x, y, c=colors.next(), marker=markers.next())

plt.show()