# Replacement for Pkg.dependents() in 1.0?
**URL:** https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131
**Category:** General Usage
**Created:** [May 12, 2019, 5:29am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131 "2019-05-12T05:29:52Z")
**Posts on this page:** 18
**Page:** 1
### Author:  [@Raf](https://discourse.julialang.org/u/Raf)
#### Post date: [May 12, 2019, 5:29am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/1 "2019-05-12T05:29:52Z")
I was using `Pkg.dependents("PkgName")` to get data for these force directed graphs of the Julia ecosystem last year. Now I need to actually use them and `Pkg.dependents()` is gone! any ideas how to build a list of all packages and their dependencies in 1.0?
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### Author:  [@baggepinnen](https://discourse.julialang.org/u/baggepinnen)
#### Post date: [May 12, 2019, 5:54am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/2 "2019-05-12T05:54:04Z")
That information is available in the manifest file of each package. In lack of a better alternative, maybe you could parse this, preferably using the already existing functionality to parse the manifest file that I guess exists in Pkg
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### Author:  [@Nosferican](https://discourse.julialang.org/u/Nosferican)
#### Post date: [May 12, 2019, 6:28am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/3 "2019-05-12T06:28:02Z")
[https://github.com/Nosferican/DependenciesParser.jl](https://github.com/Nosferican/DependenciesParser.jl)
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### Author:  [@Raf](https://discourse.julialang.org/u/Raf)
#### Post date: [May 12, 2019, 6:40am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/4 "2019-05-12T06:40:10Z")
Thanks, parsing seems to be the way… Any comments on how to use it to get the dependencies of a single package?
There should probably be a tool in Pkg for this, it’s just gone from being much easier than R to much harder than R.
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### Author:  [@Nosferican](https://discourse.julialang.org/u/Nosferican)
#### Post date: [May 12, 2019, 6:51am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/5 "2019-05-12T06:51:01Z")
You can choose whether you want all dependencies or just direct dependencies. From the docs,
```julia
julia> installable("DataFrames")[2]
38-element Array{String,1}:
"Base64"
"CategoricalArrays"
"Compat"
"DataStructures"
"Dates"
"DelimitedFiles"
⋮
"StatsBase"
"TableTraits"
"Tables"
"Test"
"UUIDs"
"Unicode"
julia> installable("DataFrames", direct = true)[2]
36-element Array{String,1}:
"Base64"
"CategoricalArrays"
"Compat"
"DataStructures"
"Dates"
"DelimitedFiles"
⋮
"Statistics"
"StatsBase"
"TableTraits"
"Tables"
"Test"
"UUIDs"
```
---
### Author:  [@Raf](https://discourse.julialang.org/u/Raf)
#### Post date: [May 12, 2019, 7:09am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/6 "2019-05-12T07:09:37Z")
Oh sorry I didn’t see the docs!
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### Author:  [@quinnj](https://discourse.julialang.org/u/quinnj)
#### Post date: [May 21, 2019, 1:32pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/7 "2019-05-21T13:32:21Z")
Wait, I thought that `Pkg.dependents("X")` showed which packages _ **depended** _ on `X`. DependenciesParser.jl seems to just show the inverse: what are the dependencies of `X`. Right?
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### Author:  [@Raf](https://discourse.julialang.org/u/Raf)
#### Post date: [May 21, 2019, 1:53pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/8 "2019-05-21T13:53:59Z")
Both are fine for building a graph, but you could be right.
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### Author:  [@tlnagy](https://discourse.julialang.org/u/tlnagy)
#### Post date: [September 12, 2019, 11:01pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/9 "2019-09-12T23:01:27Z")
Is there any solution for this case. Specifically: determining all packages that directly depend **on** Package X? I.e. all children of a package in a dependency tree
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### Author:  [@Nosferican](https://discourse.julialang.org/u/Nosferican)
#### Post date: [September 13, 2019, 11:39pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/10 "2019-09-13T23:39:21Z")
You can get that information in a few lines.
```julia
using DependenciesParser
pkgs = DependenciesParser.data
pkgs_deps = getindex.(installable.(pkgs, direct = true), 2)
revdeps = [pkgs[findall(dep_pkg -> pkg ∈ dep_pkg, deps)] for pkg in pkgs ]
```
or for a single package,
```julia
pkgs[findall(dep_pkg -> "MyPkgName" ∈ dep_pkg, deps)]
```
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### Author:  [@Nosferican](https://discourse.julialang.org/u/Nosferican)
#### Post date: [September 14, 2019, 12:52pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/11 "2019-09-14T12:52:35Z")
Might be relevant, the registry will be purged of packages not compatible with Julia 1.0 within a month or so it will be nicer afterwards.
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### Author:  [@julscha](https://discourse.julialang.org/u/julscha)
#### Post date: [October 16, 2019, 12:52pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/12 "2019-10-16T12:52:55Z")
This is tool comes in really handy.
What I don’t understand however is: installable(“DataFrames”, direct=true)[2] currently returns 39 elements/dependencies. The project.toml file of DataFrames only lists 16 dependencies in [deps]
[https://github.com/JuliaData/DataFrames.jl/blob/master/Project.toml](https://github.com/JuliaData/DataFrames.jl/blob/master/Project.toml)
I’m new to julia, so this might be obvious to someone else, but where do those additional 23 dependencies come from?
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### Author:  [@Nosferican](https://discourse.julialang.org/u/Nosferican)
#### Post date: [October 16, 2019, 2:32pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/13 "2019-10-16T14:32:37Z")
I believe the issues on how the standard libraries are being handled. During the transition, all projects had implied stdlib dependencies. I am probably going to update the package to get rid of some transition legacy code such as (`METADATA_compatible_uuid` in favor of better access to the metadata in the registry). The purge should have helped a lot in simplifying the code as well to handle deleted repositories. However, I am low-key also waiting for Julia 1.4 pre-releases so I may use the native functionality and maybe the focus of the package would change to providing things on top of that API
```julia
Pkg.dependencies # feature in Julia 1.4
```
---
### Author:  [@daschw](https://discourse.julialang.org/u/daschw)
#### Post date: [March 25, 2020, 7:38pm UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/14 "2020-03-25T19:38:19Z")
I made a **really** basic package to list the packages directly depending on a package as a vector of strings that works on Julia 1.4. [GitHub - daschw/DirectDependents.jl: List all registered Julia packages depending on a package.](https://github.com/daschw/DirectDependents.jl)
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### Author:  [@bjarthur](https://discourse.julialang.org/u/bjarthur)
#### Post date: [March 31, 2020, 10:52am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/15 "2020-03-31T10:52:52Z")
DirectDependents.jl or something like it really needs to be added to Pkg. the need and question as to how to query the packages that depend on package X comes up quite frequently. thanks for this @daschw !
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### Author:  [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)
#### Post date: [March 31, 2020, 11:25am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/17 "2020-03-31T11:25:26Z")
FWIW, there’s also some code for this in [DocumentationGenerator.jl](https://github.com/JuliaDocs/DocumentationGenerator.jl/blob/master/src/utils/pkgtools.jl) which also gives version-specific dependency information (and should support multiple packages with the same name).
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### Author:  [@Lilith](https://discourse.julialang.org/u/Lilith)
#### Post date: [June 11, 2022, 11:51am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/18 "2022-06-11T11:51:07Z")
It seems probable that a PR for that would be welcome, I’d certainly appreciate it 🙂
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### Author:  [@Lilith](https://discourse.julialang.org/u/Lilith)
#### Post date: [June 11, 2022, 11:55am UTC](https://discourse.julialang.org/t/replacement-for-pkg-dependents-in-1-0/24131/19 "2022-06-11T11:55:56Z")
Not a Julia command, but this is available on JuliaHub
[https://juliahub.com/ui/Packages/ExtendedDates/t4jDC/0.1.2?page=2](https://juliahub.com/ui/Packages/ExtendedDates/t4jDC/0.1.2?page=2)