Software & AppsOperating SystemLinux

How To Install Pip for Python3.9 on Ubuntu 20.04

Ubuntu 12

In this article, we will guide you through the process of installing pip for Python 3.9 on Ubuntu 20.04. Pip is a package manager for Python that allows you to install and manage additional packages that are not part of the Python standard library.

Prerequisites

Before proceeding, make sure you have the following:

  • Ubuntu 20.04 system
  • Python 3.9 installed. If you don’t have it, you can follow this guide to install Python 3.9.
  • Terminal access

Step 1: Download get-pip.py

The first step is to download the get-pip.py script. This script is provided by the official Python Packaging Authority (PyPA) and is used to bootstrap pip into an existing Python installation.

Open your terminal and use the curl command to download the script:

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

The -o option tells curl to write the output to a file instead of stdout. In this case, the output will be written to a file named get-pip.py.

Step 2: Install pip for Python 3.9

Now that you have the get-pip.py script, you can use it to install pip for Python 3.9. Run the following command in your terminal:

sudo python3.9 get-pip.py

The sudo command is used to run the following command as the root user. This is necessary because we want to install pip system-wide. If you prefer to install pip only for your user, you can omit the sudo command.

Step 3: Add ~/.local/bin to PATH

After installing pip, you need to add the ~/.local/bin directory to your PATH. The PATH is a list of directories that your shell searches when you run a command. By adding ~/.local/bin to your PATH, you can run pip from any directory without having to specify the full path to the pip executable.

Run the following commands in your terminal to add ~/.local/bin to your PATH:

echo 'export PATH=~/.local/bin/:$PATH' >> ~/.bashrc
source ~/.bashrc

The echo command is used to append the export command to your .bashrc file. The .bashrc file is a script that is run every time you start a new bash shell. By adding the export command to your .bashrc file, you ensure that ~/.local/bin is added to your PATH every time you start a new shell.

The source command is used to run the commands in your .bashrc file in the current shell. This updates your PATH without having to start a new shell.

Step 4: Verify the Installation

To verify that pip has been installed correctly, you can check its version. Run the following command in your terminal:

pip3.9 -V

This should display the installed pip version, such as pip 21.0.1 from /home/user/.local/lib/python3.9/site-packages/pip (python 3.9).

Conclusion

Congratulations! You have successfully installed pip for Python 3.9 on Ubuntu 20.04. You can now use pip to install and manage Python packages. For more information on how to use pip, you can check out the official pip user guide.

Can I install `pip` for Python 3.9 on Ubuntu 20.04 without using the `get-pip.py` script?

No, the get-pip.py script is the recommended method for installing pip for Python 3.9 on Ubuntu 20.04.

Can I install `pip` for Python 3.9 without root access?

Yes, you can install pip for Python 3.9 without root access by omitting the sudo command in Step 2. However, you will need to manually add the ~/.local/bin directory to your PATH in your shell configuration file.

Can I install multiple versions of `pip` for different Python versions?

Yes, you can install multiple versions of pip for different Python versions by following the same steps for each Python version. Just make sure to specify the correct Python version when running the get-pip.py script and when checking the pip version.

How do I upgrade `pip` to the latest version?

To upgrade pip to the latest version, you can use the following command:

pip3.9 install --upgrade pip

This will upgrade pip to the latest version available.

Can I use `pip` to install packages globally?

Yes, by using sudo before the pip command, you can install packages globally. However, it is generally recommended to create and use virtual environments to manage packages for better isolation and reproducibility.

Leave a Comment

Your email address will not be published. Required fields are marked *