Installing Python 3 - How to install/use both Python 2 and Python 3

TL;DR

A tutorial on installing and setting up Python 3 for beginners, including how to run scripts in different Python versions.

Transcript

all right everyone welcome to my Python 3 specifically python 33 though it should work with pretty much anything throughout Python 3 uh series for any of you guys or girls who are new to programming I will just say that learning to program has been easily one of the best Life Choices of mine definitely in the top three uh it's just giv me so many o... Read More

Key Insights

• ❓ Learning to program in Python is a valuable skill that offers countless opportunities in various industries.
• 👻 Installing Python 3 and running scripts in different Python versions is possible, allowing for flexibility based on individual needs.
• 💳 Python IDLE is a recommended integrated development environment for beginners, providing a user-friendly interface for coding and editing Python scripts.
• 📁 Saving Python scripts with the correct file extension is crucial, especially when using older versions like Python 2.7.
• 🔰 The tutorial emphasizes the importance of understanding the installation and setup process to ensure a smooth learning experience for beginners.
• 🎰 Having both Python 2 and Python 3 installed on the same machine may be necessary for compatibility with legacy scripts or coursework.
• 🙈 Python programming, especially in the context of data analysis, can be seen as a superpower due to its ability to create and manipulate large amounts of data efficiently.

Questions & Answers

Q: How does learning to program in Python benefit individuals?

Learning to program in Python offers countless opportunities and provides freedom to create things, making it a valuable skill in various industries such as data analysis.

Q: Can Python 2 and Python 3 be installed and used together on the same machine?

Yes, it is possible to have both Python 2 and Python 3 installed on the same machine. The tutorial explains how to run scripts in different Python versions and provides guidance on handling installations in the correct order.

Q: What is the difference between using the Python command line and the Python IDLE?

The Python command line is a live interpreter, useful for short tests, while the Python IDLE is an integrated development environment that allows for coding, editing, and saving scripts. The tutorial explains how to open and use both.

Q: How can beginners save Python scripts in the correct format?

In Python 3, scripts are automatically saved with the .py extension. However, in older versions like Python 2.7, you may need to manually add .py to the end of the file name to ensure it saves correctly as a Python script.

Summary & Key Takeaways

• Learning to program in Python has been one of the best decisions for the author, as it offers freedom and the ability to create things from scratch.

• The tutorial is geared towards beginners with no programming experience, but also provides guidance for Python 2.7 users and those taking classes using older versions.

• The tutorial covers how to download and install Python 3.3, including the differences between 32-bit and 64-bit versions, as well as how to run scripts in multiple Python versions.