To create new dictionaries in Python, you can use dictionary literals, the dict() constructor, and for loops. Dictionary comprehensions also provide a powerful way to manipulate them.
A dictionary literal is a series of key-value pairs enclosed in curly braces, with keys typically being hashable objects like strings, and values can be any Python object.
Using a for loop, you can dynamically populate an empty dictionary. This is useful for creating dictionaries where keys are integers and values can be generated values like powers of 2.
The dict() constructor allows for creating a new dictionary with keyword arguments, but it’s important that the keys can be valid Python identifiers.
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