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while repeatedly executes a block of code as long as its controlling expression evaluates to a truthy value. The moment the expression becomes falsy, execution continues with the statement immediately following the loop body. Syntax The general form is: while expression: statement(s) The expression is tested before every iteration. If it y ...

What Are Generators? Generators in Python are a simple way to create iterators. Instead of building a list and storing all elements in memory at once, generators calculate each item on the fly, which saves memory and improves performance when dealing with large datasets. Creating Generators One of the simplest ways to create a generator is by u ...

Defining a List A list in Python is a collection defined by square brackets [] with items separated by commas. Lists are versatile; they can hold mixed data types, including integers, strings, and even other lists (nested structures). # Initializing empty lists items = [] items = list() # Creating a nested list matrix = [[1, 2, 3], [4, 5, 6]] ...