# Are extension packages importable?

**URL:** <https://discourse.julialang.org/t/are-extension-packages-importable/92527>\
**Category:** General Usage\
**Tags:** package-extensions\
**Created:** [January 4, 2023, 9:15pm UTC](https://discourse.julialang.org/t/are-extension-packages-importable/92527 "2023-01-04T21:15:14Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![cjdoris](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/cjdoris/32/213133_2.png) [@cjdoris](https://discourse.julialang.org/u/cjdoris)\
**Post date:** [January 4, 2023, 9:15pm UTC](https://discourse.julialang.org/t/are-extension-packages-importable/92527/1 "2023-01-04T21:15:14Z")

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The new extension packages functionality looks great! [Code Loading · The Julia Language](https://docs.julialang.org/en/v1.10-dev/manual/code-loading/#man-extensions)

I get that its intended use is to provide Requires.jl-like functionality, i.e. to run some code when some other package is loaded, e.g. in order to add compatibility methods.

Two questions:

1. Is there a mechanism to import the module defined in an extension package?
2. Is there a mechanism to install the packages for an extension? E.g. if package Foo had an extension FooExt depending on ExtPkg say, can I specify to install FooExt somehow (which implicitly installs ExtPkg) instead of specifying ExtPkg explicitly?

If not, are these on the roadmap?

The second suggestion is a lot like Python’s “extras”, which you’d install like

```julia
pip install 'Foo[FooExt]'

```

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