In a Python dictionary, the has_key() method returns true if the specified dictionary is present in the dictionary, otherwise it returns false.
Syntax: dict.has_key (key)
Parameters:
- key - This is the Key to be searched in the dictionary.
Returns: Method returns true if a given key is available in the dictionary, otherwise it returns a false.
Example # 1:
| # Python program to show the work
# of the has_key () method in the dictionary
# A three-subject dictionary Dictionary1 = { ’A’ : ’Geeks’ , ’ B’ : ’For’ , ’ C’ : ’Geeks’ }
# Dictionary to check print ( "Dictionary to be checked:" ) print (Dictionary1)
# Using has_key () to check
# for the presence of a key in the dictionary print (Dictionary1.has_key ( ’A’ )) print (Dictionary1.has_key ( ’For’ )) |
Exit :
Dictionary to be checked: {’A’:’ Geeks’, ’C’:’ Geeks’, ’B’ : ’For’} True False Example # 2:
| # Python program to show the work
# of the has_key () method in the dictionary
# Three-subject dictionary Dictionary2 = { 1 : ’Welcome ’ , 2 : ’To’ , 3 : ’Geeks’ }
# Dictionary to check print ( "Dictionary to be checked:" ) print (Dictionary2)
# Using has_key () to check
# for the presence of the key in the dictionary print (Dictionary2.has_key ( 1 )) print (Dictionary2.has_key ( ’To’ )) |
Output:
Dictionary to be checked: {1: ’Welcome’, 2:’ To’, 3: ’Geeks’} True False
Python | Dictionary has_key () __dict__: Questions
Python | Dictionary has_key () has_key: Questions
