Python Basics

"Python is a versatile and powerful programming language known for its readability and ease of use. It's widely adopted in various fields, including data science, web development, machine learning, and automation. Python's extensive library ecosystem and strong community support make it a popular choice for developers of all levels."- Gemini 2024

Just the Basics
Syntax Rules:
  • Using proper indentation
  • Understanding case-sensitivity
  • Writing comments
  • Understanding keywords
Variables and Data Types:
  • Naming variables
  • Declaring variables using =
  • Understanding basic data types: integers, floats, strings, booleans, lists, tuples, dictionaries, sets
Operators:
  • Arithmetic operators (+, -, *, /, //, %, **)
  • Comparison operators (==, !=, <, >, <=, >=)
  • Logical operators (and, or, not)
Type Review

In Python, everything is an object, including data types and functions. This object-oriented nature allows for flexible and dynamic programming, as objects can have attributes (data) and methods (functions). Common data types in Python include numbers (integers, floats, complex), strings, lists, tuples, dictionaries, and sets, each with its own characteristics and operations

Data Type Description
Number Represents numerical values (integers, floats, complex numbers)
String Represents sequences of characters
List Ordered, mutable sequences of elements
Tuple Ordered, immutable sequences of elements
Set Unordered, unchangeable collections of unique elements
Dictionary Unordered collections of key-value pairs
Boolean Represents True or False values
NoneType Represents the absence of a value
Study and Practice
# Variable declarations

# Numbers
x = 7
y = 3.14

# Strings
name = "Toni"
title = "Learning to code"

# Boolean
complete = False

# Lists
numbers = [1, 2, 3, 4, 5]
letters = ['a', 'b', 'c']

# Tuple
colors = ('red', 'green', 'blue')

# Set
items = {'hat', 'shirt', 'socks'}

# Dictionary
data = {
    'planets': 8,
    'suns': 1,
    'largest_planet': 'Jupiter'
}

# Output & operators

print(x + y)
print(x > y)

# Formatting output

print(f'This is {title} with {name}')

# Nested Dictionary
planetary_facts = {
    "Mercury": {
        "diameter": 4879,
        "distance_from_sun": 57.9,
        "moons": 0
    },
    "Venus": {
        "diameter": 12104,
        "distance_from_sun": 108.2,
        "moons": 0
    },
    "Earth": {
        "diameter": 12742,
        "distance_from_sun": 149.6,
        "moons": 1
    },
    "Mars": {
        "diameter": 6779,
        "distance_from_sun": 227.9,
        "moons": 2
    },
    "Jupiter": {
        "diameter": 142984,
        "distance_from_sun": 778.5,
        "moons": 79
    },
    "Saturn": {
        "diameter": 120536,
        "distance_from_sun": 1426.7,
        "moons": 82
    },
    "Uranus": {
        "diameter": 50724,
        "distance_from_sun": 2870.9,
        "moons": 27
    },
    "Neptune": {
        "diameter": 49244,
        "distance_from_sun": 4495.1,
        "moons": 14
    }
}