Matplotlib.pyplot.setp() function in Python

#Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
 
 
def tellme(s):
    plt.title(s, fontsize=16)
    plt.draw()
plt.clf()
plt.setp(plt.gca(), autoscale_on=False)
 
tellme('matplotlib.pyplot.setp() function Example')
plt.show()

# Implementation of matplotlib function
import matplotlib
import numpy as np
import matplotlib.cm as cm
import matplotlib.pyplot as plt
  
delta = 0.25
x = np.arange(-3.0, 5.0, delta)
y = np.arange(-1.3, 2.5, delta)
X, Y = np.meshgrid(x, y)
Z = (np.exp(-X**2 - Y**2) - np.exp(-(X - 1)**2 - (Y - 1)**2))
  
im = plt.imshow(Z, interpolation='bilinear', 
                origin='lower',
                cmap="bone",
                extent=(-3, 3, -2, 2))

levels = np.arange(-1.2, 1.6, 0.2)
CS = plt.contour(Z, levels,
                 origin='lower', 
                 cmap='Greens',
                 linewidths=2,
                 extent=(-3, 3, -2, 2))

zc = CS.collections[6]
plt.setp(zc, linewidth=2)  
plt.clabel(CS, levels,
           inline=1,
           fmt='%1.1f',
           fontsize=14)
 
plt.title('matplotlib.pyplot.setp() Example')

plt.show()