Python dictionaries are easy 📙

#python #tutorial #course

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

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

# print(dir(capitals))
# print(help(capitals))

# print("That capital exists")
# else:
# print("That capital doesn't exist")

# print(key)

# print(value)

# print(f"{key}: {value}")

[BroCodez]

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

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

# 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}")

[li]

This is the only course I can actually understand at this stage. Other courses say for "beginners"... well... maybe for someone else who is clever enough as a beginner to take those courses...

[benjaminjohnpabroquez]

menu = {
"Burger": 40,
"Hotdog": 30,
"Pizza": 180,
"Chicken": 87
}

print("Menu:")
for item, price in menu.items():
print(f"{item} - {price}")


orders = []

while True:
item = input("What food would you like? ").capitalize()
if item.lower() == "done":
break
elif item not in menu:
print("Invalid item.")
continue
else:
quantity = int(input(f"How many {item}s do you want? "))
if quantity > 0:
orders.append((item, quantity))


print("You ordered:")
for order in orders:
print(f"{order[0]} x {order[1]}")

total = sum([menu[order[0]] * order[1] for order in orders])

print(f"The total amount of food is {total}pessos")

[Canxxxxxc]

Thank you for explaining this topic so thoroughly and preemptively answerinf follow ups one may have. This is how teaching should be

[gifty]

You made this subject so interesting. Excellent teacher

[mengekyosyaringanKamui]

One of the best explaination of python dictionaries

Thanks bro

[josueramirez]

2:27 Also, there is a second optional argument for the get() method where you can provide a value to return if the specified key does not exist. If you don’t give get() the second argument, you will just get `None` which is a special way of saying that there isn’t a value yet.

[harikishore]

Man, your teaching skills are so awesome. Thanks for helping us

[lionellindley]

finally an explanation I understand completely and answered all of my issues, brilliant !!

[yake]

The best python tutor for me, I love your easy and fun teaching style❤

[mohamad_subhi]

We certainly appreciate your efforts 😍

[pylejjy]

helps remembering after reading a book. tysm!

[auoy_]

For those people who are greedy with their self but you the are who really help us so many are privileged and innocent people's are here those who don't have money or own laptop these type people's are also here a huge respect to you brother 😢 you are helping us you are the teacher of us - thanks to you bro 💖

[gwvzghn]

your voice is smooth and attractive i could see you working as a narrator

[kidfromforeign]

Very good bro! You’ve just earn a subscriber

[irvinpalacios]

Definition 0:07
Example 0:20
.get method: 1:55
.update method 3:23
.keys method 4:55
.values method 5:58

[technicalresi]

Mast h dekh watch this video from India 🇮🇳🥰
Bro you are great programer 😊

[VixxieWixxie]

Great video as alwys. For me especially the dir() and help(). I didn't know they existed. What would a dictonairy mostly be used for and how?

[stevendumont]

Bro, superb instructions of dictionaries and advance topics for dummies. Love how you teach, suscribed--bell rung, I'll be back. Thank you!

[mid___]

as a person who has an exam tommorow about this, thank you