Python String index() Method

Python String format_map() Method

Last Updated : 05 Aug, 2021

Python String format_map() method is an inbuilt function in Python, which is used to return a dictionary key’s value.

Syntax:

string.format_map(z)

Parameters:

Here z is a variable in which the input dictionary is stored and string is the key of the input dictionary. input_dict: Takes a single parameter which is the input dictionary.

Returns:

Returns key’s values of the input dictionary.

Example 1: Python String format_map() method

Python3

# input stored in variable a. 
a = {'x':'John', 'y':'Wick'} 
  
# Use of format_map() function 
print("{x}'s last name is {y}".format_map(a))

Output:

John's last name is Wick

Example 2:

Python3

# input stored in variable a. 
a = {'x':"geeksforgeeks", 'y':'b'} 
  
# Use of format_map() function 
print('{x} {y}'.format_map(a))

Output:

geeksforgeeks b

Example 3:

Python3

# Input dictionary 
profession = { 'name':['Barry', 'Bruce'], 
               'profession':['Engineer', 'Doctor'], 
               'age':[30, 31] } 
                       
# Use of format_map() function  
print('{name[0]} is an {profession[0]} and he'
      ' is {age[0]} years old.'.format_map(profession)) 
        
print('{name[1]} is an {profession[1]} and he'
      ' is {age[1]} years old.'.format_map(profession))

Output:

Barry is an Engineer and he is 30 years old.
Bruce is an Doctor and he is 31 years old.

Example 4: Practical Application

The format_map() function can be used in any practical application.

Python3

# Python code showing practical  
# use of format_map() function 
def chk_msg(n): 
          
    # input stored in variable a. 
    a = {'name':"George", 'mesg':n} 
      
    # use of format_map() function  
    print('{name} has {mesg} new messages'.format_map(a)) 
  
chk_msg(10)

Output:

George has 10 new messages

Python String index() Method

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