python lambda

Python lambda is a way to create anonymous functions that can be used wherever a function object is required. Lambda functions are defined using the keyword `lambda`, followed by one or more arguments separated by commas, then a colon, and the expression to be evaluated. The syntax for creating a lambda function is:

lambda arguments: expression

For example, a lambda function that adds two numbers can be defined as:

add = lambda x, y: x + y

The lambda function can then be called by passing arguments to it:

result = add(2, 3)
print(result)  # Output: 5

Lambda functions are useful when a small function is needed for a short period of time, and it is not worth defining a named function. They are also commonly used for functional programming techniques such as map, filter, and reduce.