Dictionaries and Related Operations

A dictionary stores data as key-value pairs, letting you look up a value quickly using a meaningful key instead of a numeric index.

Creating a Dictionary

student = {
    "name": "Rahul",
    "age": 22,
    "course": "Data Science"
}

Accessing and Updating Values

print(student["name"])
student["age"] = 23
student["city"] = "Noida"

Common Dictionary Methods

print(student.keys())
print(student.values())
print(student.items())
print(student.get("email", "Not Provided"))

Looping Through a Dictionary

for key, value in student.items():
    print(key, ":", value)

Coming Up

With Python's core data structures covered, the next topic shifts to writing your own reusable blocks of code with user defined functions.