list vs array

Top 5 Main Differences Between List vs Array

In this blog, we’ll discuss the differences between List vs Array.

In python, both Array and the List are used to store the data as a data structure and can be used for iteration and indexing. Python has many different data structures with various features and functions, and its built-in data structure includes lists and sets.

So, what are the similarities between an array and a list in python?

An array is incredibly tied to a hardware notion of continuous, with every part identical in size. A list could be an idea wherever parts are ordered and wherever indexing is flexible.

Let’s begin our discussion with what is an array and a list?


An array is a kind of data structure that can store a fixed-size continuous collection of elements of the same type. An array is used to store a group of data, but it is often more helpful to think of an array as a group of elements of the same type.


The list is the data type in python languages. The list is written down as the list of commas different values inside the square bracket. The most important benefit of the list is that the element inside the list is not desired of the same data type and negative indexing.

What Are The Difference Between List Vs Array?

Here are best 7 differences between list vs array:

Definition:The list is parts that unfold concerning memory, link along. This enables straightforward insertion within the list. However, random access, while not different data structures, isn’t double.Arrays are continuous in memory making it exhausting to insert parts within the middle of the list. The advantage is the ability to perform random access.
Data structureA list is an abstract data type; is to say, it is any data structure that supports a specific bunch of operations. It allows repetition that means a single piece of data can occur more than once in a list. It is also known as a sequence.An array could be a mentioned system; it is a particular approach to organizing data within the memory device. The items of an array are assigned at adjacent memory locations.
Elements:A list is a collection of heterogeneous elements. List contains heterogeneous elements like integers, floats, and dictionaries.An array is a collection of homogeneous elements that stores a sequence of consecutively numbered objects – allocated in continuous memory.
Memory       allocationList memory allocated is dynamic and random.Array memory allocated is static and continuous.
TrackerA user must confine track of the next location wherever memory is allotted.A user needn’t ought to confine track of the next memory allocation.
Modification:Easily modifications like addition, deletion, and update of data elements are done.It isn’t easy to modify an array since the addition, deletion, and update operations are performed on a single element at a time.
Memory storage:For easy addition of elements, large memory storage is required.In comparison to the list, it is a more compact in-memory size.

Why is popularity a preferred list over an array?

More than 70% of people preferred a list over an array because the array has some drawbacks are:-

  • arrays are of fixed length. You cannot swap the size of the array once created.
  • You cannot accommodate an extra element in an array after they are created.
  • Memory is allocated to an array during its creation only, much before the actual elements are added.
Key point: The array is faster in accessing an element, while the list adds an element from the collection.


Being an expert, There are many similarities between the list vs array. The main difference between these two data types is the operation you can perform on them. The similarities between list and array are used to store data, mutable, and sliced.

Bonus tips:Array strengths: random access, better cache locality.Weakness: Fixed size, slow insertion.
Liststrengths: dynamic size, efficient memory allocation weakness: slow search time, additional storage required for pointers.


We discuss the difference between List vs Array. An array is always listed in nature, but a list is not an array. The array allows both kinds of access and direct, while the list only allows sequential access. Both are extremely popular data structure options while developing programs. also if you need assignment help online then contact our professional experts.

Frequently asked questions (FAQs)

Which is a better array or list?

The list is better for frequent insertion and deletion, whereas arrays are better suited for regular access of elements scenarios.

Is the python list is a dynamic array?

 In the python list, objects are mutable. This means that we can easily add or remove an item from the list during run time without specifying any size.

Why use an array instead of lists?

arrays can store data very compactly and are more efficient for storing large amounts of data. Arrays are great for numerical operations; the list cannot directly handle math operations.

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