{"id":22290,"date":"2021-07-10T13:41:58","date_gmt":"2021-07-10T13:41:58","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=22290"},"modified":"2022-07-24T10:09:30","modified_gmt":"2022-07-24T10:09:30","slug":"python-anonymous-lambda-function-tutorials-with-example","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/python-anonymous-lambda-function-tutorials-with-example\/","title":{"rendered":"Python Tutorials: Anonymous\/Lambda Function Tutorials with Example"},"content":{"rendered":"\n

Use of Lambda Function in python<\/h2>\n\n\n\n

We use lambda functions when we require a nameless function for a short period of time.<\/p>\n\n\n\n

In Python<\/a>, we generally use it as an argument to a higher-order function (a function that takes in other functions as arguments<\/a>). Lambda functions are used along with built-in functions like filter()<\/code>, map()<\/code> etc.<\/p>\n\n\n\n

Example use with filter()<\/h3>\n\n\n\n

The filter()<\/code> function in Python takes in a function and a list as arguments.<\/p>\n\n\n\n

The function is called with all the items in the list and a new list is returned which contains items for which the function evaluates to True<\/code>.<\/p>\n\n\n\n

Here is an example use of filter()<\/code> function to filter out only even numbers from a list.<\/p>\n\n\n\n

Example use with map()<\/h3>\n\n\n\n

The map()<\/code> function in Python takes in a function and a list.<\/p>\n\n\n\n

The function is called with all the items in the list and a new list is returned which contains items returned by that function for each item.<\/p>\n\n\n\n

Here is an example use of map()<\/code> function to double all the items in a list.<\/p>\n\n\n\n