Lighttable packaged julia9/27/2023 ![]() If you want to use the latest and greatest version of some package in a new project but you’re stuck on an older version in a different project, that’s no problem – since they have separate environments they can just use different versions, which are both installed at the same time in different locations on your system. Since environments are managed and updated independently from each other, “dependency hell” is significantly alleviated in Pkg. Moreover, if you check out a project on a new system, you can simply materialize the environment described by its manifest file and immediately be up and running with a known-good set of dependencies. In Pkg, since each project maintains its own independent set of package versions, you’ll never have this problem again. If you’ve ever tried to run code you haven’t used in a while only to find that you can’t get anything to work because you’ve updated or uninstalled some of the packages your project was using, you’ll understand the motivation for this approach. The exact set of packages and versions in an environment is captured in a manifest file which can be checked into a project repository and tracked in version control, significantly improving reproducibility of projects. ![]() Unlike traditional package managers, which install and manage a single global set of packages, Pkg is designed around “environments”: independent sets of packages that can be local to an individual project or shared and selected by name. Pkg is the standard package manager for Julia 1.0 and newer.
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