dictionary.py

# dictionary =  a collection of {key:value} pairs
#                       ordered and changeable. No duplicates

capitals = {"USA": "Washington D.C.",
                    "India": "New Delhi",
                    "China": "Beijing",
                    "Russia": "Moscow"}

# USA --> keys
# Washington D.C. --> values


# print(dir(capitals))
# print(help(capitals))
# print(capitals.get("Japan"))

# if capitals.get("Russia"):
#    print("That capital exists")
# else:
#    print("That capital doesn't exist")

# capitals.update({"Germany": "Berlin"})
# capitals.update({"USA": "Detroit"})
# capitals.pop("China")
# capitals.popitem()
# capitals.clear()

# keys = capitals.keys()
# for key in capitals.keys():
#   print(key)

# values = capitals.values()
# for value in capitals.values():
# print(value)

# items = capitals.items()
# for key, value in capitals.items():
#    print(f"{key}: {value}")