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HomeBackend DevelopmentPython TutorialSteps to install pip3 on Ubuntu

Steps to install pip3 on Ubuntu

Ubuntu is a widely used open source operating system, and Python is one of the most popular programming languages ​​today. PIP is a Python package manager that allows developers to easily install and manage Python packages. This article will introduce how to install PIP3 under the Ubuntu operating system, as well as some problems and solutions that may be encountered when installing PIP3.

  1. Installing Python3

Before you start installing PIP3, you must first install Python3 on your system. If Python3 is not available on your system, you need to install it through the following command:

sudo apt-get update
sudo apt-get install python3
  1. Install PIP3

After installing Python3, you can then install PIP3. PIP3 is easy to install, just run the following command:

sudo apt-get install python3-pip

After the installation is complete, you can use the following command to verify whether the installation is successful:

pip3 --version

If the installation is successful, the command line will output the following information :

pip 9.0.1 from /usr/lib/python3/dist-packages (python3.5)
  1. Update PIP3

If you have installed PIP3, but the version is out of date, you can use the following command to update it to the latest version:

sudo -H pip3 install --upgrade pip

If the update is successful, the command line will output the following information:

Collecting pip
  Downloading https://files.pythonhosted.org/packages/bd/4d/4a659aa8b2dd3c125919c1bb410284047f6f10a8d882c71c1e4a962ce7b8/pip-20.1-py2.py3-none-any.whl (1.5MB)
     |████████████████████████████████| 1.5MB ...
Installing collected packages: pip
  Found existing installation: pip 9.0.1
    Not uninstalling pip at /usr/lib/python3/dist-packages, outside environment /usr
Successfully installed pip-20.1
  1. Solving PIP3 installation errors

Sometimes, you may encounter various errors when installing PIP3. Here are some solutions:

  • If you encounter the error "Unable to obtain lock file", use the following command:
sudo rm /var/lib/dpkg/lock
sudo dpkg --configure -a
  • If you encounter "Module Not found" error, please use the following command:
sudo apt-get update
sudo apt-get install python3-<missing-module>
  • If you encounter the "Installation package cannot be downloaded" error, please use the following command:
sudo apt-get update
sudo apt-get install -y python3-pip
  1. Summary

With the above steps, you should have successfully installed PIP3 on your Ubuntu system. Of course, this article only provides the most basic installation process, and you can perform more configuration and optimization according to your needs. At the same time, if you encounter an error during the installation of PIP3, please do not panic. You can try some simple solutions first. If it still cannot be solved, please check the error message carefully and perform necessary debugging.

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