What are lists and tuples in Python?

In Python, list and tuple are a class of data structure that can store one or more objects or values. A list is used to store multiple items in one variable and can be created using square brackets. Similarly, tuples also can store multiple items in a single variable and can be declared using parentheses.

What is list and tuple in Python example?

The literal syntax of tuples is shown by parentheses () whereas the literal syntax of lists is shown by square brackets [] . Lists has variable length, tuple has fixed length. List has mutable nature, tuple has immutable nature. List has more functionality than the tuple.

What is a tuple in Python?

Tuple. Tuples are used to store multiple items in a single variable. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage. A tuple is a collection which is ordered and unchangeable.

What is difference between list and tuple in Python?

The key difference between the tuples and lists is that while the tuples are immutable objects the lists are mutable. This means that tuples cannot be changed while the lists can be modified. Tuples are more memory efficient than the lists.

What are lists and tuples called in Python?

List and Tuple in Python are the class of data structure. The list is dynamic, whereas the tuple has static characteristics. List is just like the arrays, declared in other languages. Lists need not be homogeneous always which makes it the most powerful tool in Python.

Python Tutorial for Beginners 4: Lists, Tuples, and Sets

What is a list Python?

A list is a data structure in Python that is a mutable, or changeable, ordered sequence of elements. Each element or value that is inside of a list is called an item. Just as strings are defined as characters between quotes, lists are defined by having values between square brackets [ ] .

What is a list used for?

A list connects words, items or names together in a meaningful way.

What is the difference between list and tuple explain with example?

In Python, list and tuple are a class of data structure that can store one or more objects or values. A list is used to store multiple items in one variable and can be created using square brackets. Similarly, tuples also can store multiple items in a single variable and can be declared using parentheses.

Why list is mutable in Python?

So, lists are pretty unique. They are mutable. 00:33 Once you create it, elements can be modified, individual values can be replaced, even the order of the elements can be changed. And lists are also dynamic, meaning that you can add elements to the list or remove elements from a list completely.

What is array in Python?

Array is a container which can hold a 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. Following are the important terms to understand the concept of Array. Element− Each item stored in an array is called an element.

What is tuple give example?

A tuple may include zero or more elements. To indicate how many elements it contains, it may be called an n-tuple, where "n" is the number of elements. Often, a tuple is represented as a comma-delimited list of the elements, enclosed in parentheses. For example, "(5, 9, 11, 3, 22, 14)" is a "6-tuple."

What is loop in Python?

The for loop in Python is used to iterate over a sequence (list, tuple, string) or other iterable objects. Iterating over a sequence is called traversal.

How do you create a list in Python?

In Python, a list is created by placing elements inside square brackets [] , separated by commas. A list can have any number of items and they may be of different types (integer, float, string, etc.). A list can also have another list as an item. This is called a nested list.

Why are tuples useful?

A tuple is useful for storing multiple values.. As you note a tuple is just like a list that is immutable - e.g. once created you cannot add/remove/swap elements. One benefit of being immutable is that because the tuple is fixed size it allows the run-time to perform certain optimizations.

What is list and set in Python?

Lists and tuples are standard Python data types that store values in a sequence. Sets are another standard Python data type that also store values. The major difference is that sets, unlike lists or tuples, cannot have multiple occurrences of the same element and store unordered values.

What are Python data types?

What is namespace in Python?

Namespaces in Python. A namespace is a collection of currently defined symbolic names along with information about the object that each name references. You can think of a namespace as a dictionary in which the keys are the object names and the values are the objects themselves.

What is difference between mutable and immutable?

If the value can change, the object is called mutable, while if the value cannot change, the object is called immutable.

Is tuple immutable?

Tuples are immutable

Besides the different kind of brackets used to delimit them, the main difference between a tuple and a list is that the tuple object is immutable.

Which is faster list or tuple?

Creating a tuple is faster than creating a list. Creating a list is slower because two memory blocks need to be accessed. An element in a tuple cannot be removed or replaced. An element in a list can be removed or replaced.

What is difference between list and array in Python?

List is used to collect items that usually consist of elements of multiple data types. An array is also a vital component that collects several items of the same data type. List cannot manage arithmetic operations. Array can manage arithmetic operations.

Why is a tuple better than a list?

Tuples are stored in a single block of memory. Tuples are immutable so, It doesn't require extra space to store new objects. Lists are allocated in two blocks: the fixed one with all the Python object information and a variable sized block for the data. It is the reason creating a tuple is faster than List.

What is list explain?

A list is any information displayed or organized in a logical or linear formation. Below is an example of a numerical list, often used to show several steps that need to be performed to accomplish something.

Why do we need lists?

Lists can keep us from procrastinating. We put this one off until the end. Making a list enables us to get our heads around really big tasks — and helps us tackle the work one aspect at a time. But a list is only useful if it reveals a truth, solves a problem or leads to action.

What is list and its types?

The three list types. There are three list types in HTML: unordered list — used to group a set of related items in no particular order. ordered list — used to group a set of related items in a specific order. description list — used to display name/value pairs such as terms and definitions.