Tuples in Python
A tuple in Python is an ordered collection of items, similar to a list. However, unlike lists, tuples are immutable, which means that the items inside a tuple cannot be modified after it is created. Tuples are enclosed in parentheses () and the items inside a tuple are separated by commas.
Here’s an example of a tuple in Python:
coordinates = (4, 5)In the example above, coordinates is a tuple containing two integer items.
Tuples are commonly used to store related data, such as a person’s name and age:
person = ("John", 30)You can access the items in a tuple using indexing, just like a list:
print(person[0]) # prints "John"You can also use the built-in function len() to find the number of items in a tuple and the built-in function tuple() to convert a list to a tuple.
Tuples are more memory efficient than lists and are generally used when the data inside it is not intended to be modified. They are also used as a key in a dictionary, since dictionary keys need to be immutable.
In summary, tuples in python are similar to lists but they are immutable and they are used to store a collection of related data, they are also more memory efficient and are commonly used as keys in a dictionary.
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