List comprehension cases
List comprehension is a concise way to create lists in Python. It provides a compact and readable syntax for creating lists by applying an expression to each item in an existing iterable (such as a list, tuple, or range) and optionally filtering the items. List comprehensions are a powerful feature in Python, allowing developers to write more expressive and efficient code. They are particularly useful when you want to create a new list by performing some operation on each item in an existing list or when you want to filter a list based on a specific condition. List comprehensions are defined within square brackets []
and consist of an expression followed by one or more for
clauses and zero or more if
clauses. The resulting list is created by evaluating the expression for each item in the input iterable that meets the specified conditions. This concise and expressive syntax makes list comprehensions a popular choice among Python developers for tasks that involve transforming or filtering lists.