Last Updated : 12 Jul, 2025
Matplotlibis a library in Python and it is numerical - mathematical extension for NumPy library. The
Axes Classcontains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.
matplotlib.axes.Axes.legend() FunctionThe
Axes.legend() functionin axes module of matplotlib library is used to place a legend on the axes.
Syntax: Axes.legend(self, *args, **kwargs) Parameters: This method accepts the following parameters.Returns:This method returns the matplotlib.legend.Legend instance.
- labels : This parameter is the list of labels to show next to the artists.
- handles : This parameter is the list of Artists (lines, patches) to be added to the legend.
Below examples illustrate the matplotlib.axes.Axes.legend() function in matplotlib.axes:
Example 1: Python3
# Implementation of matplotlib function
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
line1, = ax.plot([1, 2, 3],
label ="Line 1",
color ="black",
linewidth = 4,
linestyle =':')
line2, = ax.plot([3, 2, 1],
label ="Line 2",
color ="green",
linewidth = 4)
first_legend = ax.legend(handles =[line1],
loc ='upper center')
ax.add_artist(first_legend)
ax.legend(handles =[line2], loc ='lower center')
fig.suptitle('matplotlib.axes.Axes.legend() \
function Example\n', fontweight ="bold")
plt.show()
Output: Example 2: Python3
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
np.random.seed(19680801)
fig, ax = plt.subplots()
for color in [ 'tab:green', 'tab:blue',
'tab:orange']:
n = 70
x, y = np.random.rand(2, n)
scale = 1000.0 * np.random.rand(n)
ax.scatter(x, y, c = color, s = scale,
label = color,
alpha = 0.35)
ax.legend()
ax.grid(True)
fig.suptitle('matplotlib.axes.Axes.legend() function\
Example\n', fontweight ="bold")
plt.show()
Output:
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