Python Beginner - Module 3 - Dave & Alison 01

 Kita sudah membuat summary untuk Module 1 dan 2 dari Alison Course dan video 1, 2, 3 dan 4 dari Dave Gray.

Image of Python for Beginners (credit to Google)

Module 3, Chapter 1: Boolean, Condition, Loop, List Operation | Boolean Expression | Alison

Boolean

True: 1

False: 0

and

0   0 ...> 0

0   1 ...> 0

1   0 ...> 0

1   1 ...> 1

or

0   0 ...> 0

0   1 ...> 1

1   0 ...> 1

1   1 ...> 1

XOR ---> Exclusive OR

0   0 ...> 0

0   1 ...> 1

1   0 ...> 1

1   1 ...> 0

True or False: Boolean variable values can only be either true or false.

- True

----------------------------------------------

Module 3 - Chapter 2

Condition: Boolean, Conditions, Loop, and List Operations | Conditions | Alison

Ini adalah chapter tentang "conditions" di Python.

== ...> equal to

!= ...> not equal to

>...> greater than

< .... less than

>= ... greater than equal to

minMarks = 30

studentMarks = float(input('enter your mark: '))

 

if studentMarks > minMarks:

    print("you are eligible")

else:

  print("you are not eligible")

Run Python File:

enter your mark: 40

you are eligible

enter your mark: 12

you are not eligible

elif studentMarks >= 25:

minMarks = 30

studentMarks = float(input('enter your mark: '))

 

if studentMarks > minMarks:

    print("you are eligible")

elif studentMarks >= 25:

   print("you have been put in waiting list")25

else:

  print("you are not eligible")

Run Python File:

enter your mark: 25

you have been put in waiting list

enter your mark: 31

you are eligible

urutan:

if

elif

else

Which of these are conditional operators in Python? Choose three.

- equal to

- greater than

- less or equal to

----------------------------------------------

Module 3, Chapter 3

Loops: Boolean, Conditions, Loop, and List Operations | Loops | Alison

Ada dua type Loops:

1) Iterative

- doing over and over or repetition.

- for

2) Conditional

- while

# Iteration / for loop

for i in 'string':

    print(i)

# conditional / while loop

i = 1

while i <= 50:

    print(i)

    i += 1 # i = i + 1

Run Python File:

s

t

r

i

n

g

1

2

3

.

.

.

49

50

Which of these is used to denote a list in Python? Choose one.

- [ ]

-------------------------------------------------------

Module 3, Chapter 4

LIST : Boolean, Condition, Loop, and List Operations | Python Lists | Alison

List adalah connection of similar objects

print(fruits)

fruits = [

    'apple', # 0

    'banana', # 1

    'pear', # 2

    'strawberries', # 3

]

print(fruits)

Run Python File:

['apple', 'banana', 'pear', 'strawberries']

print(fruits[2])

fruits = [

    'apple', # 0

    'banana', # 1

    'pear', # 2

    'strawberries', # 3

]

print(fruits[2])

Run Python File:

pear

print(fruits[:2])

fruits = [

    'apple', # 0

    'banana', # 1

    'pear', # 2

    'strawberries', # 3

]

print(fruits[:2])

Run Python File:

['apple', 'banana']

-----------------------------------------

Module 3, Chapter 5

List Operation: Boolean, Condition, Loop, and List Operations | Python Lists | Alison

Mari kita mempelajari List operation

We can change value from 'd' to 'c'

characters = ['a', 'b', 'd', 'd']

print(characters)

characters [2] = 'c'

print(characters)

Run Python File:

['a', 'b', 'd', 'd']...> there are two 'd'

['a', 'b', 'c', 'd']...> 'd' is replaced by 'c'

>>> characters = ['a', 'b', 'd', 'd']

>>> len(characters)

4

>>> characters.append('f')

>>> characters

['a', 'b', 'd', 'd', 'f']

>>> characters.remove('f')       

>>> characters

['a', 'b', 'd', 'd']

['a', 'b', 'd', 'd']

>>> characters.pop(3)

'd'

>>> 'b' in characters

True

>>> 'z' in characters

False

Which of these is not one of the list operations in Python? Drag the correct answer into the space provided.

- characters.insert()

-----------------------------------------------------------------------

Module 3, Chapter 6

Bubble Sort:

Bubble sort adalah simple sorting algorithm

list = [8, 3, 1, 4]

print("Original list:", list)

length = len(list)

for i in range(length):

    for j in range(0, length - i - 1):

        if list[j] > list[j + 1]:

            list[j], list[j + 1] = list[j + 1], list[j]

print("Sorted list (ascending order):", list)

Run Python File:

Original list: [8, 3, 1, 4]

Sorted list (ascending order): [1, 3, 4, 8]

-----------------------------------------------

Module 3, chapter 7

Operators: Boolean, Condition, Loop & List Operations | Bubble Sort | Alison

Beberapa operators akan kita pelajari

>>> a = 12

>>> if (a > 6) and (a < 20):

...     print(a)

... 

12

Q1: cari binary angka 13

- bagi angka 13 dengan 2: 13/2= 6 ...> reminder 1....> first binary.

- then, 6/2 = 3 ...> reminder 0 ...> second binary

- then, 3/2 = 1 ...> reminder 1 ...> third binary

- kemudian, 1/2 = 0 ...> `reminder 1 ...> fourth binary

Untuk mengetahui binary angka 13, dilihat dari bawah (belakang) atau dari langkah ke 4 (fourth binary): 1101

>>> bin(13)

'0b1101' ...> 1101

Q2: cari angka berapa dari binary 0b1100 atau 1100?

- mulai dari sebelah kanan, yaitu 0

- decimal equivalent 0 = 0 x 2^0 = 0

-  decimal equivalent 0 = 0 x 2^1 = 0

- decimal equivalent 1 = 1 x 2^2 = 4

- decimal equivalent 1 = 1 x 2^3 = 8

Then, 0 + 0 + 4 + 8 = 12

Q3: 12|13 ...> 12 or 13

binary 12 = 1100

binary 13 = 1101

-------------------------------

                = 1101

Convert to value from right: 1(2*0) + 0(2*1) + 1(2*2) + 1(2*3) = 1+0+4+8 = 13

proved by VSC: 

>>> 12|13

13

Q4, Now find 12&13

binary 12 = 1100

binary 13 = 1101

--------------------------

                = 1100

convert to value from right: 0(2*0) + 0(2*1) + 1(2*2) + 1(2*3) = 0 + 0 + 4 + 8 =12

proved by VSC:

>>> 12 & 13

12

Q5, find 12 xor 13

>>> 12 ^ 13

1

True or False: A bubble sort consists of three types of loop.

- False

- True: one type of loop.

 

The followings are the key points from this module:

Boolean logic refers to the idea that all values are either true or false. 

Some boolean operations that were examined include:

and

or

Xor

Some conditional operators that were mentioned include:

Equals to which is written as ==. 

Not equals to which is written as !=. 

Greater than and Less than which are written as > and < respectively. 

Greater than or equals to which is written as >=. 

Less than or equals to which is written as <=. 

The following are the two types of Loops examined in this module: 

Iterative loop (For loop). 

Conditional loop (While loop). 

Lists are collections of similar objects and are denoted with "[  ]". 

The different operations that can be run on lists include: 

Changing character(s) of a list. 

Len (characters) -- To check the length of a list. 

character.append ('e') -- To add the character "e" to the end of a list.

character.reverse -- To reverse the order of characters in a list.

Bubble Sort refers to a simple algorithm that goes over an array and sorts it into the correct order. 

Module 4, Chapter 1: Functions, Tuples, Dictionaries & Data Processing | Functions | Alison

==============================================

==============================================

Dave Gray

Lesson 5/24

User input and Control flow: Python User Input & Control Flow | Python tutorial - YouTube

Free Coding: freeCodeCamp.org - YouTube

Kita akan mempelajari user input dan control flow

import random

print("Rock, Paper, Scissors Game")

print("1 for Rock, 2 for Paper, or 3 for Scissors")

playerchoice = input("Enter your choice (1/2/3): ")

player = int(playerchoice)

if player < 1 or player > 3:

    sys.exit("You must enter 1, 2, or 3.")

computerchoice = random.choice(["1", "2", "3"])

computer = int(computerchoice)

print("\nYou chose:", playerchoice)

print("Python chose:", computerchoice)

Run Start Debugging:

Rock, Paper, Scissors Game

1 for Rock, 2 for Paper, or 3 for Scissors

Enter your choice (1/2/3): 1

You chose: 1

Python chose: 3

Next Lesson: 6/24: Python Lists & Tuples for Beginners | Python tutorial - YouTube

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