What are the best practices for using dictionaries in Python?
An example of an AI chatbot conversation about best practices for Python dictionaries.
What are the best practices for using dictionaries in Python?
Some best practices include using meaningful keys, avoiding mutable types as keys, and using dictionary comprehensions for clarity.
Can you explain why mutable types shouldn't be used as keys?
Mutable types like lists can change, which would make the dictionary's key unreliable. It's best to use immutable types like strings or tuples.
What about performance? Are there any tips for optimizing dictionary usage?
Yes! You can optimize by using the defaultdict for missing keys, and by keeping your dictionaries small and focused.
How can I merge two dictionaries in Python?
You can merge dictionaries using the update() method or the | operator in Python 3.9 and later.
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