Python Tutorial for beginners: Lambdas

In this video, the speaker discusses Lambda functions in Python. Lambda functions are anonymous functions without a name, and they are concise and often used for short one-off tasks. They are handy for functional programming because they allow you to write functions without formally defining them.

The Lambda function is indicated by the Lambda keyword, followed by the arguments, which are the input parameters for the function. The Lambda function can have any number of arguments or none. The expression is a single expression that is evaluated and returned by the function. Unlike a regular function, a Lambda function can only contain one expression.

The speaker demonstrates several examples of using Lambda functions. Firstly, they use a Lambda function to define a function for checking whether a number is even or odd. Then, they sort a list of numbers using the sorted() function and a Lambda function as the key parameter.

Next, the speaker shows an example of sorting a list of stocks based on their RSI (Relative Strength Index) values using a Lambda function as the key parameter. They also demonstrate how to reverse the order of sorting using the "reverse=True" parameter.

The speaker then explains how to use Lambda functions as arguments for other functions, such as the "reduce()" function from the "functools" module. They use Lambda functions to apply different operations to a list of numbers and calculate the sum.

The video continues to cover topics such as nested Lambda functions, dynamic function creation using Lambda, Lambda functions with decorators, and function composition using Lambda.

In summary, the video provides an overview of Lambda functions in Python and demonstrates various use cases and examples for their implementation. ... https://www.youtube.com/watch?v=CGld16BGRag