python data structures array is containerwhich can hold fix number of items and these items should be of the same type most of the data structures make use of arrays to implement their algorithms the important terms to understand the concept of array are as followselementeach item stored in an array is called an element index each location of an element in an array has numerical indexwhich is used to identify the element array representation arrays can be declared in various ways in different languages an illustration is given belowas per the above illustrationfollowing are the important points to be consideredindex starts with array length is which means it can store elements each element can be accessed via its index for examplewe can fetch an element at index as basic operations the basic operations supported by an array are as stated belowtraverse print all the array elements one by one insertion adds an element at the given index deletion deletes an element at the given index search searches an elementusing the given index or by the value update updates an element at the given index