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.
- 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
- 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)
- 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If you have installed PIP3, but the version is out of date, you can use the following command to update it to the latest version: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
- 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
- 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.
The above is the detailed content of Steps to install pip3 on Ubuntu. For more information, please follow other related articles on the PHP Chinese website!

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