What are some advanced techniques for using dictionaries in Python?
You can use dictionary comprehensions, nested dictionaries, and the defaultdict from the collections module for advanced techniques.
Can you explain how dictionary comprehensions work?
Sure! Dictionary comprehensions allow you to create dictionaries in a single line using a concise syntax. For example: {key: value for key, value in iterable}.
What about using nested dictionaries?
Nested dictionaries are dictionaries within dictionaries. They are useful for representing complex data structures, like a JSON object.
How does defaultdict differ from a regular dictionary?
A defaultdict automatically initializes a default value for a key that does not exist, which can help avoid KeyErrors.
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