Here is a brief demonstration::
- >>> basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']
- >>> fruit = set(basket) # create a set without duplicates
- >>> fruit
- {'orange', 'pear', 'apple', 'banana'}
- >>> fruit = {'orange', 'apple'} # {} syntax is equivalent to [] for lists
- >>> fruit
- {'orange', 'apple'}
- >>> 'orange' in fruit # fast membership testing
+ >>> basket = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}
+ >>> print(basket) # show that duplicates have been removed
+ {'orange', 'bananna', 'pear', 'apple'}
+ >>> 'orange' in basket # fast membership testing
True
- >>> 'crabgrass' in fruit
+ >>> 'crabgrass' in basket
False
>>> # Demonstrate set operations on unique letters from two words