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An output of pip install virtualenv. Pip's command-line interface allows the install of Python software packages by issuing a command: pip install some-package-name. Users can also remove the package by issuing a command: pip uninstall some-package-name. pip has a feature to manage full lists of packages and corresponding version numbers ...
The following package management systems distribute the source code of their apps. Either the user must know how to compile the packages, or they come with a script that automates the compilation process. For example, in GoboLinux a recipe file contains information on how to download, unpack, compile and install a package using its Compile tool ...
Some package managers, including pip, use PyPI as the default source for packages and their dependencies. [6] [7] As of 6 May 2024, more than 530,000 Python packages are available. PyPI primarily hosts Python packages in the form of source archives, called "sdists", or of "wheels" [8] that may contain binary modules from a compiled language.
Most Ubuntu editions and flavours simply install a different set of default packages compared to the standard Ubuntu Desktop. Since they share the same package repositories, all of the same software is available for each of them. [120] [121] Ubuntu Core [a] is the sole exception as it only has access to packages in the Snap Store. [122]
APT front ends can list the dependencies of packages being installed or upgraded, ask the administrator if packages recommended or suggested by newly installed packages should be installed too, automatically install dependencies and perform other operations on the system such as removing obsolete files and packages.
The package management system evaluates this meta-information to allow package searches, perform automatic upgrades to newer versions, and to check that all dependencies of a package are present (and either notify the user to install them, or install them automatically). The package can also be provided as source code to be compiled on the system.
Summarising the situation in 2013, Richard Stallman identified nine aspects which generally apply to being a GNU package, [1] but he noted that exceptions and flexibility are possible when there are good reasons: [2] The package should say that it is a GNU package. It should be distributed via ftp.gnu.org, or another site offering access to ...
The software in this package is not included in Ubuntu by default, as Ubuntu maintainers wish to include only completely free software in out-of-the-box installations. Included packages may be closed-source, encumbered by software patents, or otherwise restricted. For example, the Adobe Flash plugin is a closed-source piece of software.