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Python String format_map() Method
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() functionprint("{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() functionprint('{x} {y}'.format_map(a)) |
Output:
geeksforgeeks b
Example 3:
Python3
# Input dictionaryprofession = { '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() functiondef 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
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