Developers! How are you using Polyglot Notebooks or .NET Interactive

[KathleenDollard]

If you're a developer, let us know how you are using Polyglot Notebooks or .NET Interactive.

Please include the language/kernel you're using, what your overall goal is, and how well it works/any problems your encounter.

[IntegerMan]

I use Polyglot Notebooks for:

• Mermaid diagrams
• ML .NET model training
• C# snippets and examples
• Teaching others

I'm looking into REST tonight and then variable sharing and the HTML / JS and then SQL and KQL for variety. I'll be getting a lot deeper into this area for my conference presentation on Polyglot and Jupyter on May 5th at Stir Trek.

I absolutely love Polyglot Notebooks and want to see it reach a point where I can load data, transform it, use it to train a model, and use it to visualize data as well.

[SpaceShot]

I have used them to integrate C# and F# with Markdown to use as a teaching aid. I also used the SQL query as a way to have several queries that built on each other in different cells as an alternative to having SSMS open with different SQL queries, some in comment blocks because they're "less safe" than others, etc. I imagine we all have had SSMS open with SQL just hanging out. I used notebooks to try and be a little more formal and make something to share with my team.

I recently worked somewhere where we were getting into notebook in Databricks, and we had a heavy investment in C#. There was real interest in having C# or .NET interactive work in that setting, but I couldn't figure it out so instead the developers just started using Python and made the switch. I still am not sure if this is possible or maybe it's not really all that related to dotnet interactive.

Thanks for starting this discussion, I haven't tried using the Mermaid support but I am going to try using that next for a future presentation. I think being able to deliver all of this in a GitHub repo that an attendee could clone and check out later has the potential to be really useful and a nice training aid after the fact.

[xg5-simon]

Loving it for PowerShell. Especially instructional material.
Do want to look at KQL and Kusto more in Polygot but find the documentation a little lacking there.

[SmartInteractiveGroup]

Playing with this extension. I was trying to create a notebook with PowerShell kernel that would create resources in Azure but I think the AzurePowerShell kernel is missing. But I am very exited with that particular extension. Best Regards.

[dfinke]

Just published a repo for OpenAI/Azure OpenAI PowerShell Samples: https://github.com/dfinke/openai-powershell-samples.
All Polyglot Interactive Notebooks.

[HowardvanRooijen]

Saw this and it's great! Well done!

[dfinke]

Thank you, much appreciated! I don't seem to get these notifications.

[mika76]

I use it for loads of stuff. Definitely lots of conversions. I generate classes and interfaces from databases, convert data, do file translations, just like everything... It's amazing. Mostly use C# kernel but have played with F# and python.

[akrotov]

I would use it in polyglot notebooks. But when they got some initial features, like C# intellicence. Without intellicence it is like to write code in notepad.exe. Possible, but unneeded time killer. Besides intellisense it lucks support of any normal charting library. Currently Plotly.NET port is barely usable from C#. Some types of chart is impossible to create (vertically stacked from example) from C#. Maybe it is good for F#, haven't tried, but with C# it is highly ugly, non intuitive API.
My typical task is machine learning (yes I am one of this strange .NET devs who tries to practice ML on .net stack).
For now I am working around this limitation using paid LinqPad and opening of plotlye.net charts (yes it is ugly, but some types of charts are non convenient but usable, and I just didn't find any alternative with relative possibilities).

For now I can't image real use case for .NET Interactive. And not because of .NET interactive itself - the library is very good and promising. Because there is no polyglot-compatible notebooks with simple intellicence support.

[jonsequitur]

Intellisense is supported. If you're not seeing it, could you open an issue so we can dig into why it's not working for you? It might be something specific to your environment.

[akrotov]

Hm. Wait a second. Am I miss fix of intellisense? I was so hardly waiting for this feature to return back and was checking time to time. Last time when I tried was like 6 months ago and it was in more less state, like just checked today:

So technically this is an intellicence ofcoruse. But it just lists words from current text file that's all. No methods list no event standard namespaces. Is it expected state or I am facing an issue? Actually almost nothing changed, since I last time tried it (~6 months ago), only this strange "string" hint appeared after var. But maybe it is some 3rd party extension updated, not sure (haven't used VScode for also almost 6 months). 6 months ago I've tried literally everything. I was googling for the solutions for a while, then I've found some open issue in polyglot extension github where it was stated that intellisence for C# was "limited" by some performance issues until they are fixed. So I've decided that it I am just experiences this limited functionality. Tried a bit to find last version when it was worked to build it manually, but then just switched to LinqPad back because lack of time for this and waiting for the fix since that time)

So can you please give a hint, is it an issue on screenshot or it is expected?

[jonsequitur]

It's hard to tell from your screen shot but it looks like the Polyglot Notebooks extension needs to be reloaded, which could cause this problem.

You can refer to our troubleshooting suggestions here: https://github.com/dotnet/interactive/blob/main/docs/FAQ.md#troubleshooting

[Expecho]

I would like to use it for investigating issues and bugs but I am still waiting for KQL support against a log analytics workspace or application insight resource. There are 2 open issues that are asking for this feature, see this and this. So far there does not seem to be much activity.

[jonsequitur]

Both of these KQL fixes are still on the roadmap but they depend on a more complex set of improvements to authentication (#992) and, as a result, to input handling and magic command parsing (#3194, #3323).

[Expecho]

Well, at least it is promising that they are still on the roadmap to be solved,

[Expecho]

@jonsequitur any status update you are able to share? Can I find this issue on any public roadmap somewhere?

[fforay]

I use it mainly to teach C# to undergraduate students.
I've done some Notebooks, for C#, SQL, EntityFramework, ML.NET, ...

Recently, I've also created a new Language Kernel in order to provide some Notebooks to beginners in X# Language (www.xsharp.eu)

[IntegerMan]

I'm starting a new series of videos over the summer teaching the C# language to beginners and I happen to be using Polyglot Notebooks for a lot of that process because you get nice inline display of values and short feedback loops from writing code to seeing results. Of course, I'm also using it to show the community what's possible with data science in .NET and have an upcoming book and online video course on this topic. - Matt Eland, Microsoft MVP in AI [image: https://mvp.microsoft.com/en-us/PublicProfile/5005207?fullName=Matt%20Elandhttps://mvp.microsoft.com/en-us/PublicProfile/5005207?fullName=Matt%20Eland] <https://mvp.microsoft.com/en-us/PublicProfile/5005207?fullName=Matt%20Elandhttps://mvp.microsoft.com/en-us/PublicProfile/5005207?fullName=Matt%20Eland>

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