How to get all the legends from a plot in Matplotlib?

To get all the legends from a plot in matplotlib, we can use the get_children() method to get all the properties of an axis, then iterate all the properties. If an item is an instance of a Legend, then get the legend texts.

steps

Set the figure size and adjust the padding between and around the subplots.
Create x data points using numpy.
Create a figure and a set of subplots.
Plot sin(x) and cos(x) using plot() method with different labels and colors.
Get the children of the axis and get the texts of the legend.
To display the figure, use show() method.

Example

import numpy as np
from matplotlib import pyplot as plt
import matplotlib

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

x = np.linspace(-10, 10, 100)
fig, ax = plt.subplots()

ax.plot(np.sin(x), color='red', lw=7, label="y=sin(x)")
ax.plot(np.cos(x), color='orange', lw=7, label="y=cos(x)")

plt.legend(loc='upper right')

for item in ax.get_children():
   if isinstance(item, matplotlib.legend.Legend):
      print(item.texts)

plt.show()