Python Introduction

Text Editors and Compilers/Interpreters

• Text editors like Sublime Text or Notepad++ are used for writing code.
• Compilers/Interpreters convert code into executable programs.

Introduction to Python

• Python is a high-level, general-purpose, and popular programming language.
• It is suitable for beginners and experienced programmers.
• Python is versatile and used in web development, data science, automation, and more.
• Tech-giant companies like Google, Amazon, Facebook, Instagram, Dropbox, and Uber use Python.

Why Choose Python?

• Python is beginner-friendly due to its simple and intuitive syntax.
• It has extensive libraries and a vast ecosystem of third-party packages.
• Python has a large, active community with plenty of resources and tutorials.
• It is cross-platform and works on various platforms like Windows, macOS, and Linux.
• Python is suitable for multiple domains like web development, data science, AI, automation, and more.

Getting Started with Python

• Download and install Python from the official website (python.org).
• Set up an IDE or text editor like VS Code.
• Download the Python extension in VS Code.

Python Syntax

• Indentation in Python refers to the spaces at the beginning of a code line.
• Indentation is used to indicate a block of code.
• The number of spaces is up to the programmer, but it must be at least one.
• Python will give an error if the indentation is skipped or inconsistent.

Introduction to Programming

• Programming is the art and science of creating instructions that a computer can follow.
• It involves writing instructions in a programming language to process data, make decisions, and automate tasks.
• Programming is giving computers instructions using a special language with specific rules.

Why Learn Programming?

• Create amazing things like games, websites, apps, and more.
• Solve problems creatively and efficiently.
• Develop critical thinking and problem-solving skills.
• Boost career opportunities in a tech-driven world.
• Programming is the language of the future.

Popular Programming Languages

• Python is beginner-friendly, widely used in web development, data science, and AI.
• JavaScript is essential for web development, used for client-side and server-side applications.
• Java is an object-oriented language, popular for large systems and Android development.
• C++ is an extension of C, used for systems/software development, game development.

Programming Tools and Environments

• IDEs (Integrated Development Environments) provide comprehensive facilities for programming.
• Examples of IDEs include PyCharm, Visual Studio Code, and Eclipse.

Data Types

• Text: str
• Numeric: int, float, complex
• Sequence: list, tuple, range
• Mapping: dict
• Set: set, frozenset
• Boolean: bool
• Binary: bytes

Variables

• Variables are containers for storing data values.
• A variable is created when you first assign a value to it.
• Variable names are case-sensitive.
• Rules for Python variables include starting with a letter or underscore, not starting with a number, and being case-sensitive.

Comments

• Comments can be used to explain Python code.
• Comments can make the code more readable.
• Comment starts with # in Python.
• Python does not have a syntax for multiline comments.