These are basically anonymous one-line functions created at runtime which are not bound to the name of the functions.
They return the definition of the function on the fly.
Lambda functions don't contain a return statement, they always return an expression.
You can always put a lambda definition anywhere a function is expected.
Suppose we have a function which is to be used only once and called from only one place, then we can use lambda functions.
So you don't need to give it a name and you can define the functionality there itself. Hence, we eliminate the use of a function and use Lambda expression.
Syntax
lambda argument: manipulate(argument)
Example
The given code defines a lambda function that gives the following output
add = lambda x, y: x + y print(add(4, 6))
Output
10