有什么方法可以在julia

本文介绍了有什么方法可以在julia-lang中构建程序包依赖树吗?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

使用npm list将显示已安装的软件包，版本和关系的树:

Using npm list will show a tree of installed packages, versions and relations:

尽管Julia的包裹管理方式有所不同(例如，通常不存在包裹的重复副本)，但是有什么方法可以做到:

Although Julia package management is differ (e.g normally no duplicate copy of a package exists), But is there any way to:

• 知道为什么要安装一个软件包吗?
• 或构建包依赖关系树.

推荐答案

我不认为有一个简单的函数，但是使用这两个函数应该不难:

I don't think there's a simple function, but it shouldn't be too hard to do with these two functions:

julia> Pkg.dependents("Cairo") 10-element Array{AbstractString,1}: "Tk" "Gtk" "Mamba" "Drawing" "GtkUtilities" "ProfileView" "Brim" "Winston" "EcologicalNetwork" "VennEuler" julia> Pkg.installed() Dict{ASCIIString,VersionNumber} with 119 entries: "Libz" => v"0.0.2" "Gtk" => v"0.9.3" "Interact" => v"0.3.0" "ForwardDiff" => v"0.1.4" "Benchmark" => v"0.1.0" "AxisAlgorithms" => v"0.1.4" "Cairo" => v"0.2.31+" "HttpParser" => v"0.1.1" "DataFrames" => v"0.6.10" "Requests" => v"0.3.4" "QuartzImageIO" => v"0.1.0+" "Markdown" => v"0.3.0" "Requires" => v"0.2.2" "ArgParse" => v"0.3.0" ⋮ => ⋮