Python Tuples

1. What are tuples in Python?
2. What are tuples in Python 3?
3. How do you create a tuple in Python?
4. How do you read a tuple in Python?
5. Why do we need tuples in Python?
6. How do I get a list of tuples in Python?
7. Is string immutable in Python?
8. How do you compare two tuples in Python?
9. What does KEYS () do in Python?
10. Are there arrays in Python?
11. Why tuples are faster than list in Python?
12. What is difference between tuple and list in python?

What are tuples 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 are tuples in Python 3?

A tuple is a sequence of immutable Python objects. Tuples are sequences, just like lists. The main difference between the tuples and the lists is that the tuples cannot be changed unlike lists.

How do you create a tuple in Python?

To create a tuple in Python, place all the elements in a () parenthesis, separated by commas. A tuple can have heterogeneous data items, a tuple can have string and list as data items as well.

How do you read a tuple in Python?

Python - Tuples

1. Accessing Values in Tuples. To access values in tuple, use the square brackets for slicing along with the index or indices to obtain value available at that index. ...
2. Updating Tuples. Tuples are immutable which means you cannot update or change the values of tuple elements. ...
3. Delete Tuple Elements. ...
4. No Enclosing Delimiters.

Why do we need tuples in Python?

Tuples are used to group together related data, such as a person's name, their age, and their gender. An assignment to all of the elements in a tuple using a single assignment statement. Tuple assignment occurs simultaneously rather than in sequence, making it useful for swapping values.

How do I get a list of tuples in Python?

Python list of tuples using list comprehension and tuple() method. Python tuple() method along with List Comprehension can be used to form a list of tuples. The tuple() function helps to create tuples from the set of elements passed to it.

Is string immutable in Python?

In python, the string data types are immutable. Which means a string value cannot be updated. We can verify this by trying to update a part of the string which will led us to an error. We can further verify this by checking the memory location address of the position of the letters of the string.

How do you compare two tuples in Python?

1. Rules for comparing tuples

1. Compare the n-th items of both tuple (starting with the zero-th index) using the == operator. ...
2. For two unequal items, the item that is “less than” makes the tuple, that contains it, also “less than” the other tuple.
3. If all items are equal, both tuples are equal.

What does KEYS () do in Python?

Python Dictionary keys() Method

The keys() method returns a view object. The view object contains the keys of the dictionary, as a list. The view object will reflect any changes done to the dictionary, see example below.

Are there arrays in Python?

Arrays in Python. One of the most fundamental data structures in any language is the array. Python doesn't have a native array data structure, but it has the list which is much more general and can be used as a multidimensional array quite easily.

Why tuples are faster than list in Python?

Tuples are stored in a single block of memory. Tuples are immutable so, It doesn't require extra space to store new objects. ... It is the reason creating a tuple is faster than List. It also explains the slight difference in indexing speed is faster than lists, because in tuples for indexing it follows fewer pointers.

What is difference between tuple and list in python?

We can conclude that although both lists and tuples are data structures in Python, there are remarkable differences between the two, with the main difference being that lists are mutable while tuples are immutable. A list has a variable size while a tuple has a fixed size.