keys() method of dictionary

All dictionary methods

keys(), takes no argument ( inputs ) .

Returns : the view object as a list of keys of dictionary.

The original dictionary remain same without any change.
my_dict={'a':'One','b':'Two','c':'Three'}
k=my_dict.keys()
print(k)
Output is here
dict_keys(['a', 'b', 'c'])

View object

The view object created by keys() method will reflect the changes in dictionary.
my_dict={'a':'One','b':'Two','c':'Three'}
k=my_dict.keys()
print(k)
my_dict['d']='Four' # one key value pair added
print(k)   # changes are reflected. 
Output
dict_keys(['a', 'b', 'c'])
dict_keys(['a', 'b', 'c', 'd'])

All dictionary methods


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