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How the keys() method works in Python
Hassan Ahmed
The inbuilt keys() method in Python is used to return a view object that contains all the keys of a dictionary in a
list.
A view object gives a dynamic view of the dictionary. Whenever the dictionary is altered, the view object will mirror those alterations.
Syntax
dict.keys()
Parameters
This method does not require any parameters.
Code
Example 1
postcodes = {'griffith':2603, 'belconnen':2617, 'phillip':2606}
x = postcodes.keys()
print(x)Example 2
#This example represents how the returned
#view object is dynamic
postcodes = {'griffith':2603, 'belconnen':2617, 'phillip':2606}
x = postcodes.keys()
postcodes.update({'civic': 2601})
print(x)RELATED TAGS
python
keys()
dictionary
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Hassan Ahmed
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