When should I use defaultdict in Python?
An example of an AI chatbot conversation about when to use defaultdict in Python.
What is defaultdict in Python?
defaultdict is a subclass of the built-in dict class that returns a default value for a nonexistent key.
When should I use defaultdict instead of a regular dictionary?
You should use defaultdict when you want to avoid key errors and provide a default value automatically.
Can you give me an example of how to use defaultdict?
Sure! For instance, if you're counting items, you can use defaultdict(int) to initialize counts to zero.
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