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Answer to Question #68736 in Python for Henry John

Question #68736
1.You are creating an inventory management system in Python. You want the following features:

The name of every item should be linked to its stock level and expiry date
The order of the items in the database is not a priority
You need to be able to easily lookup data for each item


Which is the best representation of the optimal data structure you should use to manage the data in this application?
Canned Soup , [45 , 16/12/2016]

‘Canned Soup’ ’45’ ’16/12/2016’

{ ‘Canned Soup’: [45, '16/12/2016'] }

‘Canned Soup, 45, 16/12/2016’

[ ‘Canned Soup’ , 45 , 16/12/2016 ]

def inventory(item,stock_level,expiry)

{ ‘Canned Soup’: 45, ‘Canned Soup’:16/12/2016 }

2.Which of the following best describes a LIST comprehension?

lc = [ x * 2 for x in [1, 2, 3] ]

lc = {x for x in ‘apple’ if x not in [‘a’, ‘e’, ‘i’]}

lc = (x for x in ‘apple’ if x not in [‘a’, ‘e’, ‘i’])

lc = x * 2 for x in [1, 2, 3]’

None of the above
Expert's answer
Answers are:
1. { ‘Canned Soup’: [45, '16/12/2016'] }
2. lc = [ x * 2 for x in [1, 2, 3] ]

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