plt.rcParams['interactive']

plt.isinteractive()

import matplotlib.pyplot as plt
  
#the function to turn on interactive mode
plt.ion()
 
#creating randomly generate collections/data
random_array = np.arange(-4, 5)
collection_1 = random_array ** 2
collection_2 = 10 / (random_array ** 2 + 1)
figure, axes = plt.subplots()
 
axes.plot(random_array, collection_1,
          'rx', random_array,
          collection_2, 'b+',
          linestyle='solid')
 
axes.fill_between(random_array,
                  collection_1,
                  collection_2,
                  where=collection_2>collection_1,
                  interpolate=True,
                  color='green', alpha=0.3)
 
lgnd = axes.legend(['collection-1',
                    'collection-2'],
                   loc='upper center',
                   shadow=True)
 
lgnd.get_frame().set_facecolor('#ffb19a')

import matplotlib.pyplot as plt
 
plt.ion()
plt.plot([1.4, 2.5])
plt.title(" Sample interactive plot")
 
axes = plt.gca()
axes.plot([3.1, 2.2])