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Matplotlib.pyplot.waitforbuttonpress() 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.waitforbuttonpress() method

The waitforbuttonpress() method in pyplot module of matplotlib library is used for blocking call to interact with the figure.

Syntax: matplotlib.pyplot.waitforbuttonpress(timeout=- 1)

Parameters: This method accept the following parameters that are discussed below:

  • timeout: This parameter is the timeout value.

Returns: This method does not returns any value.

Below examples illustrate the matplotlib.pyplot.waitforbuttonpress() function in matplotlib.pyplot:

Example 1:

# Implementation of matplotlib function 
import numpy as np 
import matplotlib.pyplot as plt 
for ite in range(2): 
    x = np.linspace(-2, 6, 100
    y = (ite + 1)*
    fig = plt.figure() 
    ax = fig.subplots() 
    ax.plot(x, y, '-b'
function Example\n\n""", fontweight ="bold") 
    w = plt.waitforbuttonpress() 
    print("Result after", ite, "click", w) 


Example 2:

# Implementation of matplotlib function 
import numpy as np 
import as cm 
import matplotlib.mlab as mlab 
import matplotlib.pyplot as plt 
fig = plt.figure() 
ax = fig.subplots() 
def tellme(s): 
    fig.suptitle(s, fontweight ="bold"
    renderer = fig.canvas.renderer 
ax.axis([-1., 1., -1., 1.]) 
plt.setp(plt.gca(), autoscale_on = False
function Example\n\n"""
w = plt.waitforbuttonpress() 
print("Result after click :", w) 


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