Introduction to Python Dictionaries

python dictionaries data

A dictionary in Python is an unordered collection of data stored as key-value pairs. Keys must be unique, enquanto valores podem ser duplicados.

For example:

my_dict = {"name": "Alice", "age": 30, "city": "New York"}

You can access dictionary values by referencing the key like this:

age = my_dict["age"]

Dictionary Methods

Some useful dictionary methods include:

• keys()
• values()
• items()

For example, you can iterate over keys and values using:

for key, value in my_dict.items():
    print(f"{key}: {value}")