human
Solve the following python programming problem given the following code:
def normalize(a) : 
    def replace_zeros(a) : 
        return np.where ((a > 0.0), a, 1.0) 
return (replace_zeros / replace_zeros (a.sum ((- 1), keepdims = True))) 

    
    

    Fix the buggy line: return (replace_zeros / replace_zeros (a.sum ((- 1), keepdims = True)))
assistant
#Here is Python program to fix the buggy line: return (replace_zeros / replace_zeros (a.

return (a / replace_zeros (a.sum ((- 1), keepdims = True)))