# How to locate in which package a certain function belongs

**URL:** <https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915>\
**Category:** New to Julia\
**Tags:** package\
**Created:** [September 1, 2020, 7:01pm UTC](https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915 "2020-09-01T19:01:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![HerAdri](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/heradri/32/5816_2.png) [@HerAdri](https://discourse.julialang.org/u/HerAdri)\
**Post date:** [September 1, 2020, 7:01pm UTC](https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915/1 "2020-09-01T19:01:32Z")

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How to locate in which package a certain function belongs.  
For example I am interested in finding the package for the function integrate\_ODE, which is shown in an example of the Pluto package  
[[Interactivity](https://awesomeopensource.com/project/fonsp/Pluto.jl)]

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**Author:** ![ffevotte](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ffevotte/32/6587_2.png) [@ffevotte](https://discourse.julialang.org/u/ffevotte)\
**Post date:** [September 1, 2020, 7:53pm UTC](https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915/2 "2020-09-01T19:53:51Z")

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You’re probably looking for [`parentmodule`](https://docs.julialang.org/en/v1/base/base/#Base.parentmodule):

```julia
julia> using LinearAlgebra

julia> parentmodule(dot)
LinearAlgebra

```

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<div class="post-metadata">

**Author:** ![Iulian.Cioarca](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/iulian.cioarca/32/30166_2.png) [@Iulian.Cioarca](https://discourse.julialang.org/u/Iulian.Cioarca)\
**Post date:** [September 1, 2020, 8:09pm UTC](https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915/3 "2020-09-01T20:09:22Z")

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If you don’t have the package installed and need to know where the function resides you can search for it on Juliahub:  
[https://juliahub.com/ui/Home](https://juliahub.com/ui/Home)

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<div class="post-metadata">

**Author:** ![xiaodai](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xiaodai/32/15937_2.png) [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Post date:** [September 2, 2020, 12:48am UTC](https://discourse.julialang.org/t/how-to-locate-in-which-package-a-certain-function-belongs/45915/4 "2020-09-02T00:48:07Z")

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> [@HerAdri](#):
>
> function integrate\_ODE

A number of package can potentially implement the same function. The best way I think is to use the

`@edit` macro but that requires the input type to be specified.

like `@edit integrate_ODE(blah1, blah2)`. You might have to follow `@edit` a few times. Some suggest using Cthulu.jl but I got intimidated.