How to add integer to python array

Question

I am trying to add an integer to an already existing array. But I am getting the following error:

 "AttributeError: 'numpy.ndarray' object has no attribute 'append'"

This is the code I am using:

import numpy as np

data = np.array(f['abc']['efg']['xyz'])
data.append(0)

Answer 1

You have defined a numpy array but you are trying to append data using normal python method which is not applicable on numpy arrays. Try using numpy append method: 

data = np.append(data, 0)