from itertools import combinations
styles = map(lambda x: x+'-', list('.^o<>1234sp*hH+xDd|_'))
for num, line_style in enumerate(styles, 1):
    plt.plot(range(10), [num]*10, line_style, label=line_style)
plt.legend(loc='upper left', bbox_to_anchor=(1, 1))
plt.show()