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Average Bite difficulty 1-10 rating: 4.33
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In this Bite you will subclass the
dictbuilt-in to support a birthday dictionary.
This dictionary takes names as keys and birthday
dates as values. Implement the
__setitem__dunder method to print a message every time somebody gets added with a birthday that is already in the dictionary. It should work like this when running it in the REPL:>>> from datetime import date >>> from bdaydict import BirthdayDict >>> bd = BirthdayDict() >>> bd['bob'] = date(1987, 6, 15) >>> bd['tim'] = date(1984, 7, 15) >>> bd['mary'] = date(1987, 6, 15) # whole date match Hey mary, there are more people with your birthday! >>> bd['sara'] = date(1987, 6, 14) >>> bd['mike'] = date(1981, 7, 15) # day + month match Hey mike, there are more people with your birthday!
So if day and month are the same, you have a match, the year can be different. Use
MSGto print the message, string replacing it with the name key of the newly added person.
Note that this exercise is to get you thinking about subclasses and extending built-in behavior. There is a caveat though: the code of the built-ins (written in C) does not call special methods overriden by user-defined classes (source: Fluent Python), so use this with caution.
Good luck and have fun!