List Comprehensions

Creating lists from other sequences is a common pattern. List comprehensions provide an elegant, readable syntax for these transformations. Basic Comprehension Syntax Adding Conditions Python supports three flavors of comprehensions, each using different bracket types. The syntax is identical, only the container changes. Beyond readability, comprehensions also offer a real performance advantage. Generator expressions use the same syntax as list comprehensions but with parentheses instead of brackets, producing values lazily without building a full list. Comprehensions are one of the most recognizable Python idioms. Interviewers often ask candidates to rewrite a for loop as a comprehension to test fluency. Nested comprehensions are possible but should be used sparingly. Two levels of nestin