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If you are a Python enthusiast, you may often use the pip tool to install and manage your favorite Python packages and modules. However, did you know that pip has some drawbacks, such as the possibility of conflicting with your system package manager or the need to create a separate virtual environment for each application? Fortunately, there's a better option, and it's called pipx . pipx is a tool for installing and running Python applications in an isolated virtual environment. It allows you to easily manage Python applications in Linux. In this article, we will show you how to install and use pipx on Ubuntu and other Linux distributions.
However, in recent releases, pip
users have encountered external management environment errors.
error: externally-managed-environment
This is a "feature" added to avoid conflicts between Python packages installed via pip and the native package manager. Python expects you to use a separate virtual environment rather than installing packages globally via pip
.
This is where pipx
comes into play. It creates a new virtual environment for each app you install, and then creates links to local binaries in /bin
at the global level. It's all automatic. It saves you time and energy.
Let’s see how to install and use pipx
on Ubuntu and other Linux distributions.
Installation is simple and can be installed on Ubuntu and Debian using the following command:
sudo apt update && sudo apt install pipx
For other distributions, please use your package manager and install it.
Once you have finished installing, add it to $PATH so you can access it from anywhere:
pipx ensurepath
install pipx in ubuntu
Close the terminal and restart it. That's it! Now, let's see how to use it.
What is the main purpose of a package manager? Package installation, update and removal.
Let me show you how to use pipx
to do the following:
Let’s start with installation.
To install a package using pipx
you must follow a simple command syntax:
pipx install
For example, here I installed a very useful program Cowsay:
pipx install cowsay
install python packages in isolation using pipx in ubuntu
Similarly, if you want to install a specific version of a package, you must ==
followed by the version number, like this:
pipx install package==version
例如,在这里,我安装了 1.24.1 版本的 numpy:
pipx install numpy==1.24.1
pipx
程序没有搜索功能(因为 PyPI 的 API 使用限制)但这并不意味着你不能搜索 Python 包。
要搜索包,你需要安装 pypisearch
:
pipx install pypisearch
完成后,你可以使用 pypisearch
命令搜索包:
pypisearch python_package_name
在这里,我搜索了 neofetch:
search python packages in Ubuntu
与任何其他现代包管理器一样,你可以一次升级所有包,也可以一次升级一个包。
要一次升级所有软件包,你只需执行以下命令:
pipx upgrade-all
upgrade all the python packages at once in ubuntu
如你所见,它将 numpy 升级到最新版本。
但是如果你想升级一个特定的包,你可以这样做:
pipx upgrade package-name
假设我想将 cowsay
包升级到最新版本,那么,我将使用以下命令:
pipx upgrade cowsay
upgrade specific python package using pipx in ubuntu
要删除包,你必须使用 uninstall
标志,如下所示:
pipx uninstall package_name
为了供你参考,在这里,我从我的系统中删除了 numpy
:
pipx uninstall numpy
remove python packages using pipx in ubuntu
对 pip
的限制影响了最终用户对它的使用。值得庆幸的是,pipx
提供了急需的替代方案。它符合使用虚拟环境的 Python 准则,同时允许已安装的应用在全局范围内可用。
对于不是 Python 应用开发的最终用户,这提供了使用发行版仓库中不可用的 Python 应用的选项。
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