Python/Basic Programming at master

Python Basics

About Python

Python is a high-level, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation.

Designed by :

Guido Van Rossum in 1991

Chapter 1 : Basics Concepts

# Prints"Hello, world"
print("Hello, world!")

Chapter 2 : Data Types

Basic Datatypes

Integer : 1,-4
Float : 27.2, -12
String : "Hello", 'hi'
Boolean : True, False

# Initialisation of each basic datatype
integer = 5 # integer
floats = 2.0 # float
string = "Hello" # string
boolean = True # boolean

Advanced Datatypes

List : [1,2,3,4]
Tuple : (1,2,3,4)
Dictionary : {1 : "Hello", 2 : "world"}
Sets : {1,2,3,4}

# Using each Advanced Datatype
List = [1,2,3,4]
Tuple = (1,2,3,4)
Dictionary = {
    1:"Hello" ,
    2 : "World"
}
Set = {1,2,3,4}

Chapter 3 : Operators in Python

In Python there are many operations that we can perform on operands/values,

Arithmetic Operators
Conditional Operators
Logical Operations
Assignment Operations
Bitwise Operations
Membership Operations
Identity Operations

# Example of Arithmetic Operation
# Basic Calculator
a = 1
b = 2
print("Basic Calculator Operations : ")
print("Addition : ", a + b)
print("Subtraction : ", a - b)
print("Division : ", a / b)
print("Multiplication : ",a * b)

Basic Calculator Operations :
Addition :  3
Subtraction :  -1
Division :  0.5
Multiplication :  2

Chapter 4 : If - Elif - Else

Conditional Statements in Python are a way of categorizing and performing tasks only if the condition is true. A great way to manipulate and create lists is through list comprehensions, which have an expression and then a ‘for’ clause, followed by a zero or more ‘for’ or ‘if’ clauses.

# Example of If - Elif - Else
a = 5
b  = 10

if a > b :
    print("A is greater")
elif b > a :
    print("B is greater")
else:
    print("A and B is equal")

Chapter 5 : Loops

Loops in Python help programs to iterate over a specific statement for 'n' no. of times. Python’s flow control statements are ‘while’, ‘for’. For a switch, you need to use ‘if’. For enumerating through list members, use ‘for’. For obtaining a number list, use range (number).

# Example : For Loop
for i in range(3):
    print(i)

# Example : While Loop
i = 0
while i < 3:
    print(i)
    i += 1

Chapter 6 : Functions

Functions are block of code that performs a specific task. In python, you can define a function using a "def" keyword and calling a function.

# Defining a Function
def my_func(name):
    print("My name is ",name)

# Calling a Function
my_func("Abel Roy")

Chapter 7 : Methods

Methods in Python are datatype specific. Each data type has it's own set of methods.

# List eMethods
new_value = 5
List = [1,2,3,4]

List.append(new_value) # This is a List Method
print(List)

Simple Python Projects

TicTacToe in Python
Rock Paper Scissors - User Defined
Basic Password Creation Tool
Advanced Calculator with 8 Functions
Mark Grading System with Custom Feedback
Showcasing Time of 2+ Different Locations
Probability/ Memory Game using Basics