# How to use VSCode and REPL to write and test a package?

**URL:** <https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818>\
**Category:** VS Code\
**Tags:** question, package\
**Created:** [March 31, 2022, 3:28pm UTC](https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818 "2022-03-31T15:28:31Z")\
**Posts on this page:** 3\
**Page:** 4

<div class="post-metadata">

**Author:** ![haberdashPI](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/haberdashpi/32/26337_2.png) [@haberdashPI](https://discourse.julialang.org/u/haberdashPI)\
**Post date:** [September 2, 2022, 11:39am UTC](https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818/61 "2022-09-02T11:39:10Z")

</div>

For that sort of debugging like workflow I often find Infiltrator.jl to be useful.

---

<div class="post-metadata">

**Author:** ![e3c6](https://avatars.discourse-cdn.com/v4/letter/e/e79b87/32.png) [@e3c6](https://discourse.julialang.org/u/e3c6)\
**Post date:** [September 25, 2022, 4:02pm UTC](https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818/62 "2022-09-25T16:02:28Z")

</div>

> [@davidanthoff](#):
>
> We do _not_ ship Revise.jl out of the box, we just try to load it when it is available (this might change in the future, I got pretty far at some point with shipping it out of the box). I typically add Revise.jl to may main default `v1.7` project. That project is _always_ available, even if you activate another project because it is always in the `LOAD_PATH`. The VS Code extension will then automatically try to load it into the REPL (there is a config setting to control that).

Is this still true? Or has there been some update? Thanks!

---

<div class="post-metadata">

**Author:** ![davidanthoff](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/davidanthoff/32/223493_2.png) [@davidanthoff](https://discourse.julialang.org/u/davidanthoff)\
**Post date:** [September 25, 2022, 5:09pm UTC](https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818/63 "2022-09-25T17:09:26Z")

</div>

We now ship Revise as part of the extension for the new [test feature](https://discourse.julialang.org/t/prerelease-of-new-testing-framework-and-test-run-ui-in-vs-code/86355). We don’t (yet) use that bundled version of Revise in the REPL, that still depends on the user installing it manually.

[Previous page](https://discourse.julialang.org/t/how-to-use-vscode-and-repl-to-write-and-test-a-package/78818.md?page=3)