codingmemories

[codingmemories]

Instances, also known as objects

Examples of a class

The code - def __init__(self): always has 'self' within the brackets. That's just how it is. It apparently "writes itself into the class."

class Dog:

def __init__(self):

With this method, just above - it runs the code for every printed class and closed parenthesis.

import random class Dog: info = 'a domesticated mammal size = 'the hight, length and with of a dog spicimen' def __init__(zen): print("I'm alive") zen.lucky_number = random.randint(1,10)

terrier = Dog() --- This line of code defines an instance before print. golden_retriever = Dog() print(terrier.lucky_number) --- here, variable is linked to the instance. print(golden_retriever.lucky_number)

Dog()

Dog()

Dog()

Dog()

Each of these repeats a print command for this class and only for classes. an error awaits those who try it elsewhere.

[codingmemories]

Classes - a blueprint essentially.

#Classes.pie - This is a comment.

Classes allow you to prepare various information for merely being ready to be print, such as breed or brand, in this instance. The capital letter and the colon defines a class; in this case - Dog

You cannot print off variables within a class simply as they are (info) in this case, to print off variable - info's data - it's (Dog.info) So that's the class, then dot, then variable, within closed parenthesis.

class Dog: breed = "Yorkshire Terrier" x = 6 print(Dog.info) print(Dog.x)

class Electronic_devices: veriety = 'modem' brand = 'BT' internet_speed = '5gig' print (Electronic_devices.veriety)

Result:

a furry barker 6 modem

Remember not to indent the print.

What I've learned is that you can only print off one variety of information about what I call exhibits, for each print command. That's why I was able to print two pieces of information revolving around the class - Dog: I provided two print commands. Within each of the print brackets having the class - Dog, I followed with a full stop and provided variable. 2 print commands from under the class - Dog, 2 pieces of information.

I think I confused myself with how I was supposed to present the electronic side of thing's. This paragraph won't be relevant for long.

[codingmemories]

Game Loop V2

import random print("Hi! Welcome to the guessing game. Please guess a number between 1 and 100.")

gUess = int(input("What is your guess?: ")) cOrrect_Number = 13 gUess_COunt = 1

while gUess != cOrrect_Number: gUess_COunt = gUess_COunt+1 if gUess < cOrrect_Number: gUess = int(input("Wrong. You need to guess higher. What is your guess?: ")) else: gUess = int(input("Wrong. You need to guess lower. What is your guess?: ")) print(gUess) print(f"Congrats! The right answer was {cOrrect_Number} you took {gUess_COunt} guesses")

[codingmemories]

Flashing Heart Microbit

def on_forever():

    basic.show_icon(IconNames.HEART)

    basic.pause(100)

    basic.clear_screen()

    basic.pause(500)

basic.forever(on_forever)

[codingmemories]

Game Loop

guess = int(input("what is your guess?:")) or just guess = 0 correct_number = 5 guess_count = 1

while guess != correct_number: guess_count += 1 guess = int(input("what is oyur guess?:"))

print(f"Congrats! The right answer was {correct_number}. It took you {guess_count} guesses.")

[codingmemories]

Variables

They hold information and can be called anything, but their spaces must be replaced with say, an underscore. You do leave a space between a variable and equals sign and then space before it's information though. For example:

Jake_wallet = 41

When ready, the information of the variable is revealed by typing print and the name of the variable within brackets - no spaces:

print(Jake_wallet)

Here's everything, the complete example:

wallet = 41

print(wallet)

result: 41

[codingmemories]

Return

def double(number): return number * 2

new_number = print(double(5))

print(new_number)

def uppercase(text): return text.upper()

print(uppercase("nick"))

names = ['nick','Jane','sara']

for name in names: print (uppercase(name))

Result

10 None NICK JANE SARA

[codingmemories]

Return

def double(number): return number * 2

print(double(5))

You can return all kinds of code: strings boolians etc

def double(number): return number * 2

new_number = print(double(5))

print(new_number)

Result:10

None

def MyDogInfo(x): return x.upper()

print (MyDogInfo("Dog is Josh and is 7"))

Result: Dog is Josh and is 7

[codingmemories]

Failed parameter training

def MyDogInfo (age,age0): print(age + age0)

MyDogInfo

def MyDogName (Josh): print('Josh')

MyDogName

Result: invalid syntax

[codingmemories]

Parameters

Further down, the reason I haven't simply typed ("num,num") is because those two variables have to be different, however minor (and variables can't be actual numbers either.) They are going to represent the two numbers to be added together.

hello("john")

def add_numbers(num,num0): print(num + num0)

add_numbers(1,2)

Numbers can't be variables, interesting lesson

Dog Info

def MyDogInfo (age,name): print(f"My name is {name} and I'm {age}")

MyDogInfo(7,'Josh')

[codingmemories]

Function

a way of giving name to a chunk of code They need to be called out after print with just the variant followed by closed brackets with nothing in them.

'def' - defines and effectively creates a function

def bark(): - the colon signals the end of the function print("woof woof!")

bark() - here the function is called and executes the code in the function

this means that bark is woof woof!

def Hello(): print("Hello Nick")

Hello()

[codingmemories]

Dictionaries

Considered a storage database for the coders to utilise.

Line one defines dictionary

Line two looks up and chooses from dictionary

you can mix integers, boolians (...I think) and strings amongst the 'keys' and 'values' of the dictionary.

[codingmemories]

Loops

for number in range(10): print("Hello") print("Hi there")print(number)

for number in range(41): print((number + 1) * 2, Hi there')

for is recognised by the system to set up variables to be replicated.

in and range(), including number within it's brackets, determines how much replication variables undergo upon the print command.

Interger numbers have been found to amount higher during replication; but it is unclear whether this is because the int number is left without commas that would turn it into a string, or if there is something key in the first line of code shown above. Upon experimentation, you can not have range without in (not int :D) and vice versa.

Both of the above gives the result of successive numbers proceeding each other in twos, starting with 2 and ending in 40

[codingmemories]

Lists

Lists are initiated by square brackets surrounding subjects to print. I cannot think of what to refer to the subjects as, yet.

The code below isn't meant to make sense. I solely placed numbers within a list of favourite movies to deviate from video instructions. This makes it easy for my novice coding brain to solidify what it is that makes the code function properly.

favourite_movies = [4,3,2,6,4,7,]

print(favourite_movies[5])

fave_numbers = ['The Revenant', 'Scott Pilgrim vs the World',] print(fave_numbers[1])

print(len(favourite_movies)) favourite_movies.append("The Dark Knight")

del(favourite_movies[1]) print(favourite_movies)

del(favourite_movies[3]) print(favourite_movies)

del(favourite_movies[3]) print(favourite_movies)

Result is 3

The result is 13

Trying to simultaneously use len while adding items, will simply count the number of items without adding more.

The first print command is only shows data relevant to the first code. If you only want the most updated item information revealed, leave the print command at the very end.

[codingmemories]

This needs some notes

import random

lucky_number = random.randint(1,5)

if lucky_number == 1: lucky_text = 'your day was a little depressing' if lucky_number == 2: lucky_text = 'your day was adequat' if lucky_number == 3: lucky_text = 'your day was great' if lucky_number == 4: lucky_text = 'your day was fantastic!' if lucky_number == 5: lucky_text = 'your day was the best :)' print(f'{lucky_number}') print(f'{lucky_text}')

[codingmemories]

Clarification on why it worked

import random

answer = random.randint(1,3)

if answer == 1: print("I could feel better.") if answer == 2: print("I feel good :)") if answer == 3: print("I feel great!")

[codingmemories]

This is Correct

import random

answer = random.randint(1,3)

if answer == 1: print("I could feel better.") if answer == 2: print("I feel good :)") if answer == 3: print("I feel great!")