Lambda functions in Python

Today, while reading a book, I saw a statement like this:

if or isinstance (value,float):    split_function=Lambda

The lambda function is very confused, so I looked at the Python document, which is explained in the following document:

Lambda

An

anonymous-inline function consisting of a single expression which was evaluated when the function is Called. The syntax to create a lambda function is lambda [arguments]: expression

The lambda function is also called an anonymous function, that is, the function does not have a specific name, and the method created with Def is a name.

Lambda allows the user to quickly define a single-line function , and of course the user can complete the function according to a typical function definition. The purpose of lambda is to simplify the process of user-defined usage of functions.

For example:

log2=Lambda x:log (x)/log (2)

is to define a logarithmic function with a base of 2. This example is a parameter, and there is a case where there is no parameter:

>>>bar=Lambda :'This isa bar'>>>print   is a bar

Lambda functions in Python