REST APIs with Flask and Python - The "in" Keyword in Python

This video tutorial introduces the 'in' keyword in Python, which is used to check for membership in data structures like lists, sets, and strings. The tutorial provides examples of using 'in' with a list of friends, a set of movies, and checking substrings within strings. It highlights the utility of 'in' for determining if an element exists within these structures. The video concludes with a brief mention of the next topic, which involves using 'if' statements with the 'in' keyword.

What is the primary use of the 'in' keyword in Python?

• To perform arithmetic operations

• To check for membership in collections

• To import modules

• To define functions

Which data structure is ideal for storing unique items without caring about order?

• Set

• Dictionary

• Tuple

• List

Why might you choose a set over a list for storing items?

• Sets prevent duplication and ignore order

• Sets allow duplicate items

• Sets maintain the order of items

• Sets automatically sort items

Can the 'in' keyword be used to check for substrings within a string?

• Yes, but only with tuples

• No, it only works with sets

• No, it only works with lists

• Yes, it can check for substrings

What will be covered in the next video following this tutorial?

• Using 'if' statements with the 'in' keyword

• Error handling in Python

• Advanced data structures

• Using loops with the 'in' keyword