# Python program explaining
# numpy.ma.MaskedArray.nonzero() function
    
# importing numpy as geek   
# and numpy.ma module as ma  
import numpy as geek  
import numpy.ma as ma
   
arr = ma.array(geek.eye(5))
  
gfg = arr.nonzero()
  
print (gfg)

(array([0, 1, 2, 3, 4]), array([0, 1, 2, 3, 4]))

# Python program explaining
# numpy.ma.MaskedArray.nonzero() function
    
# importing numpy as geek   
# and numpy.ma module as ma  
import numpy as geek  
import numpy.ma as ma
   
arr = ma.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
  
gfg = ma.nonzero(arr > 3)
  
print (gfg)

(array([1, 1, 1, 2, 2, 2]), array([0, 1, 2, 0, 1, 2]))