Python dictionary setdefault() Method

Description

The method setdefault() is similar to get(), but will set dict[key]=default if key is not already in dict.

Syntax

Following is the syntax for setdefault() method

dict.setdefault(key, default=None)

Parameters

• key -- This is the key be searched.

• default -- This is the Value to be returned in case key is not found.

Return Value

This method does not return any value.

Example

The following example shows the usage of setdefault() method.

#!/usr/bin/python

dict = {'Name': 'Zara', 'Age': 7}

print "Value : %s" %  dict.setdefault('Age', None)
print "Value : %s" %  dict.setdefault('Sex', None)

Let us compile and run the above program, this will produce the following result:

Value : 7
Value : None