1. Dictionary-Methods-and-Loops.py

# details = {
#     "name": "shiva",
#     "age": 24,
#     "gender": "male",
#     123: "prasad",
# }
# print(details)
# 
# # Access Items values
# print(details["shiva"])
# 
# # Add Items
# details["branch"] = "cse"
# print(details)
# 
# # Remove Items
# # 1. pop()
# details.pop("gender")
# print(details)
# details.pop(123)
# print(details)
# 
# # 2. popitem() it removes the last item in dictionary
# details.popitem()
# print(details)
# 
# # 3. del() it removes the dictionary and if item is not specified then it deletes entire dictionary with items
# del details["name"]
# print(details)
# del details
# print(details) # returns error name details is not defined, because we deleted the dictionary
# 
# # 4. clear() it empty the dictionary means removes al items and without deleting dictionary
# details.clear()
# print(details) # returns empty dictionary
# 
# Change Items
# details["name"] = "prasad"
# print(details)
# 
# update() it changes multiple item values at a time
# details.update({"name": "prasad","age": 99})
# print(details)




# Loop Dictionaries
details = {
    "name": "shiva",
    "age": 24,
    "gender": "male",
    123: "prasad",
}


# for item in details:
#     print(item) # display only item key names
#
# for item in details:
#     print(details[item]) # display only key values

# for item in details:
#     print(f"{item} = {details[item]}") # display both key names and key values

# using methods
# 1. keys()
# for item in details.keys():
#     print(item)

# 2. values()
# for item in details.values():
#     print(item)

# 3. items()
# for item in details.items():
#     print(item)