Using plt.legend() method, we can create a legend, and passing frameon would help to keep the border over there.
Steps
Set the X-axis label using plt.xlabel() method.
Set the Y-axis label using plt.ylabel() method.
Draw lines using plot() method.
Location and legend drawn flags can help to find a location and make the flag True for the border.
Set the legend with “blue” and “orange” elements.
To show the figure use plt.show() method.
Example
import matplotlib.pyplot as plt
plt.ylabel("Y-axis ")
plt.xlabel("X-axis ")
plt.plot([9, 5], [2, 5], [4, 7, 8])
location = 0 # For the best location
legend_drawn_flag = True
plt.legend(["blue", "orange"], loc=0, frameon=legend_drawn_flag)
plt.show()Output
