When plotting a plot using matplotlib:
How to remove the box of the legend?
plt.legend(frameon=False)
How to change the color of the border of the legend box?
leg = plt.legend()
leg.get_frame().set_edgecolor('b')
How to remove only the border of the box of the legend?
leg = plt.legend()
leg.get_frame().set_linewidth(0.0)
For the matplotlib object oriented approach:
axes.legend(frameon=False)
leg = axes.legend()
leg.get_frame().set_edgecolor('b')
leg.get_frame().set_linewidth(0.0)