Python Quizzes for Job Interview Preparation

Sample of Python Quizzes and Questions for Job Interview

I'm doing some revision on python programming. May this helps you as well. Please try to understand the logic ya after seeing the code answer.

Image by Shahid Abdullah from Pixabay

Data Structure Quiz

1. Implement a group_by_owners function that:
   

   • Accepts a dictionary containing the file owner name for each file name.
   • Returns a dictionary containing a list of file names for each owner name, in any order.

   For example, for dictionary {'Input.txt': 'Randy', 'Code.py': 'Stan', 'Output.txt': 'Randy'} the group_by_owners function should return {'Randy': ['Input.txt', 'Output.txt'], 'Stan': ['Code.py']}.
   
   My code answer
   Result: defaultdict(, {'Randy': ['Input.txt', 'Output.txt'], 'Stan': ['Code.py']}) 
   
   
   Some additional info:
   A defaultdict works exactly like a normal dict, but it is initialized with a function (“default factory”) that takes no arguments and provides the default value for a nonexistent key.
   
   A defaultdict will never raise a KeyError. Any key that does not exist gets the value returned by the default factory. 
2. Implement the IceCreamMachine's scoops method so that it returns all combinations of one ingredient and one topping. If there are no ingredients or toppings, the method should return an empty list.
   
   For example, IceCreamMachine(["vanilla", "chocolate"], ["chocolate sauce"]).scoops() should return [['vanilla', 'chocolate sauce'], ['chocolate', 'chocolate sauce']].
   
   My code answer
   Result: [['vanilla', 'chocolate sauce'], ['chocolate', 'chocolate sauce']]