In this article, we will walk you through the process of installing
python3-pip on Ubuntu 20.04.1 LTS Desktop. The
pip tool is a package manager for Python, which is used to install and manage software packages written in Python.
python3-pip on Ubuntu 20.04.1 LTS Desktop, you need to enable the Universe repository, update the package database, set Python 3 as the default version, and then install
python3-pip using the
Before we begin, you need to have administrative access to an Ubuntu 20.04.1 LTS Desktop system. You should also have a basic understanding of the terminal and command-line interface.
Step 1: Enable the Universe Repository
Ubuntu’s Universe repository contains a vast collection of free and open-source software maintained by the Ubuntu community. To enable it, open the terminal and type the following command:
sudo add-apt-repository universe
sudo command allows you to run the command as a superuser, or root user. The
add-apt-repository command adds a new repository to your system’s software sources.
Step 2: Update the Package Database
Next, update your package database to ensure you have the latest information about the software packages you can install. To do this, run the following command:
sudo apt update
apt command is a powerful command-line tool used for handling packages in Ubuntu and other Linux distributions.
Step 3: Set Python 3 as the Default Version
Ubuntu 20.04.1 LTS comes with both Python 2 and Python 3 pre-installed. To ensure that Python 3 is the default version, use the
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 20
--install is used to create a new symbolic link group.
/usr/bin/python is the master link,
python is the link’s group name,
/usr/bin/python3.8 is the slave link, and
20 is the priority for this slave link.
You can verify that Python 3 is now the default version by running:
The output should show
Step 4: Install python3-pip
python3-pip by running:
sudo apt install python3-pip
This command installs the
python3-pip package, which allows you to use
pip with Python 3.
Congratulations! You have successfully installed
python3-pip on your Ubuntu 20.04.1 LTS Desktop. You can now use
pip to install and manage your Python packages.
If you encounter any issues, make sure you have performed
sudo apt update before attempting to install packages. Additionally, check if the package
python-is-python3 is installed. If not, you can install it using
sudo apt install python-is-python3. This package helps ensure that
python points to
python3 by default.
Remember, it is important to always update your package database (
sudo apt update) before installing or modifying packages to avoid potential issues. Happy coding!
For more information about Python, you can visit the official Python website. For more details on using
pip, check out the official pip documentation.
To check the version of Python installed on your Ubuntu system, open the terminal and type
python --version. This command will display the installed version of Python.
Yes, it is possible to install multiple versions of Python on Ubuntu. You can use tools like
conda to manage multiple Python installations and switch between them.
pip to the latest version, use the following command:
python -m pip install --upgrade pip. This command will update
pip to the latest available version.
pip can be used to install packages globally on Ubuntu. However, it is recommended to create and use virtual environments to isolate project dependencies and avoid conflicts between different packages.
To create a virtual environment using
pip, you can use the
venv module. Open the terminal and navigate to the desired directory. Then, run the following command:
python3 -m venv myenv. This will create a new virtual environment named
myenv in the current directory.
To activate a virtual environment, navigate to the directory where the virtual environment is located and run the following command:
source myenv/bin/activate. This will activate the virtual environment, and you will see the environment name
(myenv) in your terminal prompt.
To deactivate a virtual environment, simply run the
deactivate command in your terminal. This will restore your system’s default Python environment.
Yes, you can install packages from a
requirements.txt file using
pip. Navigate to the directory where the
requirements.txt file is located and run the following command:
pip install -r requirements.txt. This will install all the packages listed in the file.
To uninstall a package installed with
pip, use the following command:
pip uninstall package_name. Replace
package_name with the name of the package you want to uninstall.
To upgrade a specific package installed with
pip, use the following command:
pip install --upgrade package_name. Replace
package_name with the name of the package you want to upgrade.