I can't believe you can do this with dictionaries in python!

Опубликовано: 03 Апрель 2025
на канале: CodeNode

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absolutely! dictionaries in python are incredibly versatile data structures that can do much more than just store key-value pairs. below are some advanced and interesting ways you can manipulate and utilize dictionaries in python.

1. nested dictionaries

you can create a dictionary inside another dictionary, which allows for more complex data structures.

2. dictionary comprehensions

python allows you to create dictionaries in a concise way using dictionary comprehensions.

3. merging dictionaries

starting from python 3.9, you can merge dictionaries easily using the `|` operator.

4. using `defaultdict`

the `collections` module provides a `defaultdict` that automatically initializes keys with a default value.

5. reversing a dictionary

you can create a new dictionary by reversing keys and values. this works well if the original dictionary has unique values.

6. sorting a dictionary by keys or values

you can easily sort a dictionary by its keys or values.

7. filtering a dictionary

you can easily filter a dictionary based on certain criteria.

conclusion

dictionaries in python are a powerful tool that can be used in various ways beyond mere storage of key-value pairs. from nesting and comprehensions to built-in functions and modules, they provide a wealth of functionality. understanding these features can significantly enhance your ability to work with data in python. happy coding!

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