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DNF (abbreviation for Dandified YUM) [7] [8] [9] is a package manager for Red Hat-based Linux distributions and derivatives. DNF was introduced in Fedora 18 in 2013 as a replacement for yum; [10] it has been the default package manager since Fedora 22 in 2015 [11] and Red Hat Enterprise Linux 8 [when?] [12] and is also an alternative package manager for Mageia.
Dependency hell is a colloquial term for the frustration of some software users who have installed software packages which have dependencies on specific versions of other software packages. [1] The dependency issue arises when several packages have dependencies on the same shared packages or libraries, but they depend on different and ...
A package manager or package-management system is a collection of software tools that automates the process of installing, upgrading, configuring, and removing computer programs for a computer in a consistent manner. [1] A package manager deals with packages, distributions of software and data in archive files.
These metadata are combined with information in each package to determine (and resolve, if possible) dependencies among the packages. The hope is to avoid a situation known as dependency hell . A separate tool, createrepo , sets up YUM software repositories , generating the necessary metadata in a standard XML format (and the SQLite metadata if ...
Koçulu deleted the package after a dispute with Kik Messenger, in which the company forcibly took control of the package name kik. As a result, thousands of software projects that used left-pad as a dependency, including the Babel transcompiler and the React web framework, were unable to be built or installed.
Circular dependency example. In this UML package diagram, package A depends on packages B and C. Package B in turn depends on package D, which depends on package C, which in turn depends on package B. The latter three dependencies create a cycle, which must be broken in order to adhere to the acyclic dependencies principle. [2]
In addition to the standard UML Dependency relationship, there are two special types of dependencies defined between packages: . package import; package merge; A package import is "a directed relationship between an importing namespace and a package, indicating that the importing namespace adds the names of the members of the package to its own namespace."
Circular dependencies can cause many unwanted effects in software programs. Most problematic from a software design point of view is the tight coupling of the mutually dependent modules which reduces or makes impossible the separate re-use of a single module.