How do default values work in Python dictionaries?
An example of an AI chatbot conversation about default values in Python dictionaries.
How do default values work in Python dictionaries?
In Python, you can use the dict.get() method to provide a default value if a key is not found.
Can you show me an example of that?
Sure! Here's an example: my_dict = {'a': 1}; value = my_dict.get('b', 0) will return 0 since 'b' is not in the dictionary.
What if I want to set a default value for all keys?
You can use collections.defaultdict to set a default value for all keys. For example, from collections import defaultdict; my_dict = defaultdict(int) will default to 0 for any missing key.
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