topic Re: Fabric Python Notebook Custom Library in Data Engineering

Fabric Python Notebook Custom Library

nerminyehia — Thu, 30 Oct 2025 08:50:48 GMT

Hi,

I’m trying to create a custom library and import it into a Python notebook (not a PySpark notebook), but it seems this isn’t currently supported in the Fabric portal.

Is there a workaround to make this work properly with a Python notebook (not PySpark)?
If not, do you know when this feature is expected to be available?
I’ve tried packaging the library as a wheel file, uploading it to the Lakehouse, and installing it manually in the notebook. However, I’d like to improve this process to reduce execution time.

Thanks,
Nermin

Re: Fabric Python Notebook Custom Library

OnurOz — Thu, 30 Oct 2025 09:23:27 GMT

Hi Nermin,

You can upload your wheel file (.whl) to the workspace or Lakehouse and install it in your notebook code using %pip install /lakehouse/default/Files/<your_wheel.whl>. This is a quick method, but it means the install runs at the beginning of every session.

Currently, Microsoft Fabric Python notebooks (non-PySpark) allow you to use custom libraries by uploading a wheel (.whl) file and installing it manually using pip within the notebook, but there is no official, streamlined way to natively register and reuse custom libraries as you might expect in more traditional environments.

Check this video out: https://youtu.be/JPyLTwSbdt8

Hope that helps.

Onur

😊 If this post helped you, feel free to give it some Kudos! 👍

✅ And if it answered your question, please mark it as the accepted solution.

Re: Fabric Python Notebook Custom Library

v-echaithra — Mon, 03 Nov 2025 11:58:47 GMT

Hi @nerminyehia ,

We’d like to follow up regarding the recent concern. Kindly confirm whether the issue has been resolved, or if further assistance is still required. We are available to support you and are committed to helping you reach a resolution.

Best Regards,
Chaithra E.

Re: Fabric Python Notebook Custom Library

v-echaithra — Fri, 07 Nov 2025 11:30:49 GMT

Hi @nerminyehia ,

May I ask if you have resolved this issue? Please let us know if you have any further issues, we are happy to help.

Thank you.