Overview
This lecture explains how to install Python and an Integrated Development Environment (IDE), specifically PyCharm, on your computer so you can write, run, and debug Python code.
Python Installation Process
- You need a Python interpreter to write and execute Python code on your computer.
- To check if Python is installed, use the command
python --version or python3 --version in your command prompt or terminal.
- If Python is not found, download it from the official Python website (preferably version 3.12).
- Download the correct installer based on your operating system (Windows, Mac, or Linux).
- During installation, select "Add python.exe to PATH" to make Python available from any command prompt.
- After installation, verify by reopening command prompt and typing
python --version.
- The Python interpreter allows you to run one line of code at a time, suitable for basic calculations and code tests.
Setting Up an Integrated Development Environment (IDE)
- An IDE helps you write, test, run, debug, and manage Python projects efficiently.
- PyCharm (by JetBrains) is a popular IDE for Python, available in both Professional (paid) and Community (free) versions.
- Download PyCharm from the JetBrains website and choose the Community version for free.
- Install PyCharm by following the setup prompts ("Next", "Install", etc.).
- PyCharm detects your Python installation automatically and allows you to create and manage projects.
Alternative Tools and Options
- Other tools for Python coding include VS Code, Anaconda, and IDLE (Python’s built-in editor).
- You can use any editor or IDE based on personal preference; all support basic Python operations.
Testing Your Installation
- Test your Python installation by running simple arithmetic (e.g.,
2 + 3) in the interpreter, IDLE, or through an IDE.
- If you encounter errors, ensure your PATH is set correctly and that you are opening a new command prompt.
Key Terms & Definitions
- Python Interpreter — A program that reads and executes Python code line by line.
- IDE (Integrated Development Environment) — Software that provides tools for writing, testing, and debugging code.
- PyCharm — A popular Python IDE developed by JetBrains.
- PATH — An environment variable that allows the system to locate installed programs from the command line.
Action Items / Next Steps
- Install Python from the official website and ensure it’s added to your PATH.
- Download and install PyCharm Community Edition or another preferred IDE.
- Test basic Python operations in your installed interpreter or IDE.