Python · question
Question 7 of 52
Explain dictionary and its characteristics.
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Dictionary is a mutable, unordered collection of key-value pairs. Keys must be immutable and unique.
student = {
"name": "John",
"age": 25,
"grades": [85, 90, 78]
}
# Accessing values
print(student["name"]) # John
print(student.get("age")) # 25
# Adding/updating
student["email"] = "john@email.com"
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