The Anonymous Functions in Python 3
These functions are called anonymous
because they are not declared in the standard manner by using the def keyword. You can
use the lambda keyword to create small anonymous functions.
- · Lambda forms can take any number of arguments but return just one value in the form of an expression. They cannot contain commands or multiple expressions.
- · An anonymous function cannot be a direct call to print because lambda requires an expression.
- · Lambda functions have their own local namespace and cannot access variables other than those in their parameter list and those in the global namespace.
- · Although it appears that lambdas are a one-line version of a function, they are not equivalent to inline statements in C or C++, whose purpose is to stack allocation by passing function, during invocation for performance reasons.
Syntax
The syntax of lambda function contains
only a single statement, which is as follows
|
lambda [arg1 [,arg2,.....argn]]:expression
|
Following is an example to show how lambda
form of function works-
and the output is :
