Full parsing of lambda expressions in Python

What is a lambda expression

Lambda expression is an anonymous function, and lambda expression is named after the lambda calculus in mathematics, directly corresponding to it (lambda abstraction), an anonymous function, That is, a function without a function name. A lambda expression can represent closures (notice differs from the traditional mathematical sense).

Lambda is an anonymous function that can be replaced with a lambda expression when we need to call a function repeatedly and don't want to write as much code.

General format for Lambda:

Lambda argument:manipulate (argument)

Example code:

Add = Lambda x,y:x + y
Print Add (3,5)
#output: 8

Usage:

Sort.

A = [(1, 2), (4, 1), (9, 3), (+,-13)]a.sort (Key=lambda x:x[1]) print (a) # Output: [(3,-4), (1, 1), (2, 9), (10,)]

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