# Way to know if someone's using package in terminal?

**URL:** <https://discourse.julialang.org/t/way-to-know-if-someones-using-package-in-terminal/9649>\
**Category:** General Usage\
**Tags:** question\
**Created:** [March 11, 2018, 10:05pm UTC](https://discourse.julialang.org/t/way-to-know-if-someones-using-package-in-terminal/9649 "2018-03-11T22:05:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![djsegal](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/djsegal/32/13752_2.png) [@djsegal](https://discourse.julialang.org/u/djsegal)\
**Post date:** [March 11, 2018, 10:05pm UTC](https://discourse.julialang.org/t/way-to-know-if-someones-using-package-in-terminal/9649/1 "2018-03-11T22:05:35Z")

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Is there a way to check within a package (as its developer) whether the user is using:

- JuliaPro
- Jupyter
- REPL
- etc.

// basically just need to know if the person can render html, css, and js (i.e. not using the REPL)

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**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 11, 2018, 10:11pm UTC](https://discourse.julialang.org/t/way-to-know-if-someones-using-package-in-terminal/9649/2 "2018-03-11T22:11:12Z")

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The “correct” way would be to define `show` methods of the correct `MIME` types and have the `Display` determine what mime format it supports to show.

I use this [https://github.com/KristofferC/PGFPlotsX.jl/blob/master/src/tikzdocument.jl#L301-L303](https://github.com/KristofferC/PGFPlotsX.jl/blob/master/src/tikzdocument.jl#L301-L303) to detect a few of the different IDEs.

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<div class="post-metadata">

**Author:** ![djsegal](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/djsegal/32/13752_2.png) [@djsegal](https://discourse.julialang.org/u/djsegal)\
**Post date:** [March 11, 2018, 10:26pm UTC](https://discourse.julialang.org/t/way-to-know-if-someones-using-package-in-terminal/9649/3 "2018-03-11T22:26:26Z")

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From WebIO’s [readme](https://github.com/JuliaGizmos/WebIO.jl#readme), it says it supports:

```julia
Juno - The hottest Julia IDE
IJulia - Jupyter notebooks for Julia
Blink - An Electron wrapper you can use to make Desktop apps
Mux - A web server framework

```

How would `Blink` and `Mux` fit into this?