A lambda function in Python is a small, anonymous function that is defined without a name. It is also known as an anonymous function because it does not have a name. Instead, it is defined using the lambda keyword. It is a way of creating functions that can be used only once and then discarded.
The syntax for a lambda function in Python is as follows:
lambda arguments: expression
The arguments are optional, but if you want to pass in any, they should be separated by commas. The expression is required and can consist of any valid Python code.
Lambda functions are often used when you need to define a simple function for a short period of time. They can be used in place of named functions in many cases, especially when you only need to use the function once. They are commonly used with built-in functions like map(), filter(), and reduce().
