Home/ Questions/Q 3692
Next
In Process

askthedev.com Latest Questions

Asked: 2024-09-24T17:45:01+05:30 In: ,

What steps do I need to follow to install Python 3.9 on my Ubuntu system?

I’ve been wanting to dive into Python 3.9 for some projects, but I’m a bit lost when it comes to installing it on my Ubuntu system. I’ve seen so many different guides and recommendations online, and honestly, it feels a bit overwhelming. Can anyone help me out with this?

First off, I’m not the most tech-savvy person out there, so if you could break it down into simple steps, that would be awesome! I’ve got Ubuntu 20.04 installed right now, and while I can manage basic commands in the terminal, I could really use some hand-holding.

I know there are a few ways to install Python—like using APT, downloading it from the source, or maybe using a package manager like Anaconda? But I’ve read that not all methods are equally straightforward or reliable, so I’m not sure which route to take. Should I just use the version that’s in the repository, or will that give me an older version?

If I do go the APT route, what’s the exact command to install Python 3.9? I’ve heard that I might need to add a PPA (Personal Package Archive) or something to get it, so how do I do that safely? Are there any specific steps I should follow after the installation, like setting up a virtual environment or installing pip?

Also, what if I run into issues along the way? Are there common errors I should be on the lookout for, or tips that could save me from pulling my hair out? And once I have it installed, how can I check if it worked correctly? I want to make sure I’m all set up for my Python projects!

I know this might be a bit of a long shot, but if you could share your experiences or maybe a simple step-by-step guide, it would mean a lot. Thanks in advance!

Share

    Leave an answer

    You must login to add an answer.

    Need An Account,

    2 Answers






    1. Installing Python 3.9 on Ubuntu 20.04

      How to Install Python 3.9 on Ubuntu 20.04

      If you’re looking to install Python 3.9 on your Ubuntu 20.04 system, here’s a simple step-by-step guide. Don’t worry! It’s easier than it sounds.

      Step 1: Open the Terminal

      First, you need to launch the terminal. You can do this by searching for “Terminal” in your applications menu or by pressing Ctrl + Alt + T.

      Step 2: Update Your System

      Before installing anything, it’s a good idea to update your package lists. Run the following command:

      sudo apt update

      Step 3: Add the Deadsnakes PPA

      The version of Python you want isn’t available in the default repositories, so you need to add a PPA. Use this command:

      sudo add-apt-repository ppa:deadsnakes/ppa

      Press Enter when prompted to add the repository.

      Step 4: Install Python 3.9

      Now that you have added the PPA, update your package lists again:

      sudo apt update

      Then, install Python 3.9 with this command:

      sudo apt install python3.9

      Step 5: Install pip

      After installing Python, you might want to install pip (Python’s package installer). Use the command:

      sudo apt install python3.9-distutils
      wget https://bootstrap.pypa.io/get-pip.py
      python3.9 get-pip.py

      Step 6: Set Up a Virtual Environment (Optional)

      It’s often a good idea to work in a virtual environment. You can create one with:

      python3.9 -m venv myenv

      To activate it, run:

      source myenv/bin/activate

      To deactivate it, just type deactivate.

      Step 7: Check Your Installation

      Finally, check that Python 3.9 is installed correctly. You can do this by running:

      python3.9 --version

      It should return something like Python 3.9.x.

      Troubleshooting

      If you run into issues, make sure all your commands are correct. Common errors might include:

      • Permission issues (using sudo helps here)
      • Incorrect command syntax (double-check your typing)

      As long as you follow these steps, you should be good to go! Happy coding!



    2. To install Python 3.9 on your Ubuntu 20.04 system, the easiest and most straightforward way is to use the APT package manager. Start by updating your package list and installing the necessary dependencies by running the following commands in your terminal:

      sudo apt update
sudo apt install software-properties-common

      Next, you’ll need to add a Personal Package Archive (PPA) that contains Python 3.9. You can do this by executing the command:

      sudo add-apt-repository ppa:deadsnakes/ppa

      Once the PPA has been added, update your package list again and install Python 3.9:

      sudo apt update
sudo apt install python3.9

      After installation, you can check if it was successful by running:

      python3.9 --version

      If you see output indicating Python 3.9.x, then you’re all set! To manage dependencies for your projects, it’s highly recommended to set up a virtual environment. You can do this by installing the `venv` module:

      sudo apt install python3.9-venv

      After this, you can create a virtual environment by navigating to your project directory and running:

      python3.9 -m venv myenv

      As for pip (the Python package installer), it usually comes pre-installed with Python, but if you need to install it separately, you can do so by running:

      sudo apt install python3-pip

      If you encounter any issues, common errors to watch for include missing packages or permissions errors, which can typically be resolved by ensuring you have the necessary rights to install software via the terminal. Lastly, always refer to the official documentation or community forums for help if you’re stuck!


    Related Questions