Matplotlib.pyplot.get_fignums() in Python

Last Updated : 10 May, 2020
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Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MATLAB-like interface. There are various plots which can be used in Pyplot are Line Plot, Contour, Histogram, Scatter, 3D Plot, etc.

matplotlib.pyplot.get_fignums() method

The get_fignums() method in pyplot module of matplotlib library is used to get the list of existing figure numbers.
Syntax: matplotlib.pyplot.get_fignums() Parameters: This method does not accept any parameters. Returns: This method returns the list of existing figure numbers.
Below examples illustrate the matplotlib.pyplot.get_fignums() function in matplotlib.pyplot: Example 1: Python3 1== 
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
   

x = np.linspace(0, 10, 500)
y = np.sin(x**2)+np.cos(x)
   
plt.plot(x, y, label ='Line 1')
   
plt.plot(x, y - 0.6, label ='Line 2')
 
w = plt.get_fignums()
 
plt.text(2, 1.98,
         "List of existing figure numbers : "
         + str(w),
         fontsize = 12)
    
plt.title('matplotlib.pyplot.get_fignums() function\
 Example', fontweight ="bold") 

plt.show()
Output: Example 2: Python3 1== 
# Implementation of matplotlib function
import matplotlib.pyplot as plt
import numpy as np
    

t = np.arange(0.01, 5.0, 0.01)
s = np.exp(-t)
    
plt.plot(t, s)
plt.ylim(1, 0)
plt.ylabel('Display Y-axis Label', fontweight ='bold')
plt.grid(True)
 
w = plt.get_fignums()
 
plt.text(0.9, 0.58,
         "List of existing figure numbers : "
         + str(w),
         fontsize = 12)
    
plt.title('matplotlib.pyplot.get_fignums() function\
 Example', fontweight ="bold") 

plt.show()
Output:

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