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If you’ve used other package managers before, you may be wondering where the package versions are stored. While the Project.toml stores the IDs of the project’s direct dependencies, the Manifest.tomltracks the entire dependency tree, including both the direct and indirect dependencies and the versions of each. Because of this, the Manifest.tomlis always a larger file. For example, after adding just the CSV package to a fresh project, my Manifest.toml is already 200 lines long!
Each package in the Julia package ecosystem has its own UUID which will appear in the Project.toml next to the package name. These values are assigned to the package when it is regestered in the Julia General registry and they never change, even if the version of the package does.
Although you may not have heard of it, the Julia programming language has caused a stir in the development community. Born in 2012, the speedy and easy-to-use language has recently become a favorite among machine learning and AI researchers, some of which are wondering if this could be the underdog that soon usurps Python.