Adding an Element

• Create a NumPy array:
  

  

• You can use append method to add an element in a NumPy array:
  

  

• You can also add an element to a Python list using np.append() method. But the returned object is a NumPy array.
  

  

• You can also add a list of elements. Try doing this by yourself. For example,

  1 np.append(arr, [11, 22])
  .

Caution!

• A NumPy array doesn’t support append() method directly on the array. The given snippet will clear this:

• But a Python list supports append() method directly on the Python list:

Removing an Element

• You can remove an element from an array using delete method of NumPy. See the snippet below:

• You can also remove an element from a Python list using np.delete() method.

Sorting an Array

• You can quickly sort an array in ascending order as:

• You can sort a NumPy array or a Python list by using ‘.sort()’ directly on the array or the list. You can try this by yourself.