Python Beginner

What is Lambda Function?

An anonymous, single-expression function defined inline using the lambda keyword.

Lambda functions are small anonymous functions defined with the lambda keyword: lambda arguments: expression. They can have any number of arguments but only one expression.

Common uses include sorting keys (sorted(data, key=lambda x: x[1])), filtering (filter(lambda x: x > 0, numbers)), and callback functions. For complex logic, named functions are preferred.

Related Terms

A distributed task queue for Python that enables asynchronous processing of background jobs and scheduled tasks.

Python Coroutine

A function defined with async def that can be paused and resumed, enabling concurrent execution without threads.

A Python library for writing concurrent code using async/await syntax for non-blocking I/O operations.

Walrus Operator

The := operator that assigns a value to a variable as part of an expression, introduced in Python 3.8.

A Python file containing definitions and statements that can be imported and reused in other Python programs.

A string literal placed as the first statement in a module, class, or function to document its purpose and usage.

View All Python Terms →