Matplotlib.artist.Artist.get_label() in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Artist class contains Abstract base class for objects that render into a FigureCanvas. All visible elements in a figure are subclasses of Artist.

Matplotlib.artist.Artist.get_label() Method

The set_label() method in artist module of matplotlib library is used to set the label that will be displayed in the legend.

Syntax: Artist.get_label(self)

Parameters: This method does not accepts any parameter.

Returns: This method return the label used for this artist in the legend.

Below examples illustrate the matplotlib.artist.Artist.get_label() function in matplotlib:

Example 1:

# Implementation of matplotlib function
from matplotlib.artist import Artist
import matplotlib.pyplot as plt


fig, ax = plt.subplots()

x = [0, 1]
y = [1, 1]
line, = ax.plot(x, y)

ax.legend(("Line_1", ))

ax.text(0.2, 1.02, "Value Return by get_label()\
: " + str(Artist.get_label(line)))

fig.suptitle("""matplotlib.artist.Artist.get_label()
function Example""", fontweight="bold")

plt.show()

Output:

Example 2:

# Implementation of matplotlib function
from matplotlib.artist import Artist
import matplotlib.pyplot as plt


def make_patch_spines_invisible(ax):
    ax.set_frame_on(True)
    ax.patch.set_visible(False)
    for sp in ax.spines.values():
        sp.set_visible(False)


fig, host = plt.subplots()
fig.subplots_adjust(right = 0.75)

par1 = host.twinx()
par2 = host.twinx()

par2.spines["right"].set_position(("axes", 1.2))

make_patch_spines_invisible(par2)

par2.spines["right"].set_visible(True)

p1, = host.plot([0, 1, 2], [0, 1, 2],
                "b-", label ="Y-label 1")
p2, = par1.plot([0, 1, 2], [0, 30, 20],
                "r-", label ="Y-label 2")
p3, = par2.plot([0, 1, 2], [500, 300, 150],
                "g-", label ="Y-label 3")

host.set_xlim(0.25, 1.75)
host.set_ylim(0.25, 1.75)
par1.set_ylim(0, 40)
par2.set_ylim(10, 500)

host.set_xlabel("X-label")
host.set_ylabel("Y-label 1")
par1.set_ylabel("Y-label 2")
par2.set_ylabel("Y-label 3")

host.yaxis.label.set_color(p1.get_color())
par1.yaxis.label.set_color(p2.get_color())
par2.yaxis.label.set_color(p3.get_color())

tkw = dict(size = 4, width = 1.5)
host.tick_params(axis ='y',
                 colors = p1.get_color(),
                 **tkw)
par1.tick_params(axis ='y',
                 colors = p2.get_color(),
                 **tkw)
par2.tick_params(axis ='y',
                 colors = p3.get_color(),
                 **tkw)
host.tick_params(axis ='x',
                 **tkw)

lines = [p1, p2, p3]

host.legend(lines, [Artist.get_label(l) for l in lines])

fig.suptitle("""matplotlib.artist.Artist.get_label()
function Example""", fontweight="bold")

plt.show()

Output: