Udemy - 100 Days of Code: The Complete Python Pro Bootcamp

Day 9 - Beginner - Dictionaries & Nesting

68. Dictionaries

# Create Dictionaries
this_dict = {
    "brand": "Ford",
    "electric": False,
    "year": 1964,
}
this_dict2 = dict(brand = "Ford", electric = False, year = 1964)

# Access Items
print(this_dict["brand"])
print(this_dict.get("brand"))
print(this_dict.keys())
print(this_dict.values())
print(this_dict.items())

# Change Items
this_dict["year"] = 2018
this_dict.update({"year": 2018})

# Add Items
this_dict["model"] = "Mustang"
this_dict.update({"model": "Mustang"})

# Remove Items
this_dict.pop("brand")
this_dict.popitem()
del this_dict["brand"]
del this_dict
this_dict.clear()

# Loop Dictionaries
for key in this_dict:  
    print(key)  
    print(this_dict[key])  
for key in this_dict.keys():  
    print(key)  
for value in this_dict.values():  
    print(value)  
for key, value in this_dict.items():  
    print(key, value)

69. Nested Lists and Dictionaries

# Nested List in List
nested_list = ["A", "B", ["C", "D"]]  
print(nested_list[2][1])


# Nested List in Dictionary
travel_log = {  
    "France": ["Paris", "Lille", "Dijon"],  
    "Germany": ["Stuttgart", "Berlin"],  
}
print(travel_log["France"][1])


# Nested Dictionary in Dictionary
travel_log = {
  "France": {
    "cities_visited": ["Paris", "Lille", "Dijon"],
    "total_visits": 12
   },
  "Germany": {
    "cities_visited": ["Berlin", "Hamburg", "Stuttgart"],
    "total_visits": 5
   },
}
print(travel_log["Germany"]["cities_visited"][2])

70. Blind Auction Project

Demo

def find_highest_bidder(bidding_record):
    winner = ""
    highest_bid = 0
    for bidder in bidding_record:
        if highest_bid < bidding_record[bidder]:
            winner = bidder
            highest_bid = bidding_record[bidder]
    print(f"The winner is {winner} with a bid of ${highest_bid}")


def find_highest_bidder2(bidding_record):  
    winner = max(bidding_record, key = bidding_record.get)  
    highest_bid = bidding_record[winner]  
    print(f"The winner is {winner} with a bid of ${highest_bid}")  


bids = {}  
continue_bidding = True
  
while continue_bidding:  
    name = input("What is your name?: ")  
    price = int(input("What is your bid?: $"))  
    bids[name] = price  
    should_continue = input("Are there any other bidders? Type 'yes or 'no'.\n")  
    if should_continue == "no":  
        continue_bidding = False  
        find_highest_bidder(bids)  
    elif should_continue == "yes":  
        print("\n" * 20)    # Clear the output