Python Tutorial Overview

Introduction

• This tutorial is designed to teach the basics of Python programming.
• Suitable for data science, machine learning, or web development.
• No prior programming knowledge required.
• Instructor: Mosh Hamadani.
• Python can be used for:
  • Machine learning and AI
  • Web development (e.g., using Django)
  • Automation

Getting Started

• Download Python from python.org and install it.
• For Windows users, ensure you check "Add Python to PATH."
• Install a code editor, PyCharm (Community Edition recommended).
• Create a new Python project and write your first program.

Basic Syntax

• Print statements (e.g., print("Hello, World!")).
• Variables store data (e.g., age = 20).
• Python supports integers, floats, strings, and booleans.
• String concatenation using + (e.g., "Hello " + name).

User Input

• Use input() to receive input from the user.
• Convert input to the desired data type (e.g., int(), float()).

String Operations

• Strings are objects with methods like .upper(), .lower(), .find(), .replace().
• Use in keyword to check if a substring exists in a string.

Arithmetic and Operators

• Arithmetic operators include +, -, *, /, %, **.
• Augmented assignment operators (e.g., x += 3).
• Operator precedence follows mathematical rules.***

Comparison and Logical Operators

• Comparison operators: >, <, >=, <=, ==, !=.
• Logical operators: and, or, not.

Conditional Statements

• Use if, elif, else to make decisions.
• Example for weight converter using conditions.

Loops

• While loops for repeating code blocks.
• For loops to iterate over sequences like lists and ranges.
• Use range() for generating number sequences.

Lists

• Lists store sequences of items.
• Methods: .append(), .insert(), .remove(), .clear().
• Loop through lists using for and while loops.

Tuples

• Tuples are immutable lists, defined with parentheses ().
• Unlike lists, tuples cannot be changed after creation.
• Methods: .count(), .index().

Conclusion

• Python is versatile and powerful for various applications.
• The tutorial covers fundamentals to help beginners start coding in Python efficiently.
• Additional resources and comprehensive courses available at codewithmosh.com.