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      • How to initialize array in python?

      How to initialize array in python?

      • Posted by Python Point Team
      • Categories Python
      • Date November 25, 2020
      • Comments 0 comment

      An array is basically a data structure which can hold one value at a time. It is a collection or ordered series of elements of the same type.

      Many of us gets confused whether list and arrays are the same or not.

      Lists vs. arrays

      • Arrays and lists have the same way of storing data.
      • Arrays take only a single data type elements but lists can have any type of data.
      • Other than a few operations, the kind of operations performed on them are different.

      Array in python can be created after importing the array module.

      e.g.,import arrayarr=array.array(‘i’, [1,2,3])print(arr)

      Basic operations on array:-

      • Finding the length of array- Length of an array is the number of elements that are actually present in an array. We can use the function len() to achieve it.

      syntax:-

      import array
      a=arr.array('i', [a1, a2, a3])
      len(a)
      • Adding/ changing an element- Functions used to add element to an array are append(), insert() and extend().

      e.g.,

      import array
      a=array.array('i', [1,2,3])
      a.append(5)
      print(a)
      a.extend([4,5,6])
      print(a)
      a.insert(2, 7)
      print(a)
      • Removing an element- Functions used to remove or delete an element of an array are pop() and remove()

      e.g.,

      import array
      a=array.array('i', [1,2,3,4,5,6,7])
      print(a.pop(2))
      a.remove(7)
      print(a)

      This is all about initializing an array in python.

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