Dictionary

student = {
    "naam": "प्रिया",
    "umar": 20,
    "marks": 85,
    "city": "दिल्ली"
}

print(student["naam"])               # प्रिया
print(student.get("phone", "N/A"))  # N/A

student["marks"] = 90   # update
student["email"] = "p@g.com"  # add
del student["city"]       # delete

print(student.keys())
print(len(student))

marks = {"Math": 85, "Science": 92, "Hindi": 78}

# Items loop करना
for subject, score in marks.items():
    print(f"{subject}: {score}")

# Nested Dictionary
school = {
    "s1": {"naam": "राम", "marks": 85},
    "s2": {"naam": "सीता", "marks": 92}
}
print(school["s2"]["naam"])   # सीता