How to use my own compiled .pyd (win) or .so(linux) library?

Hi @huisky2000 and sorry for the delayed reply. 

As Streamlit in Cognite Data Fusion is based on webassembly, this is currently not possible. Packages would need to be posted in pypi (as a “pure Python wheel”) or code embedded in the application itself. Is this not an acceptable approach in your case?

As for deploying the applications, we are working allowing easier access to Streamlit applications for “non-developers” in the June release.

Hi again,

Yes, this is not an option in my case, I think. There is something that needs to be protected. It is no problem to use Streamlit directly; you can upload your compiled modules to Github and integrate them together within Streamlit. I don’t quite understand the logic here. The CDF seems to put an additional restriction on using the Streamlit functionalities, which narrows its flexibility. Why so? Frankly speaking, I don’t see any benefits in using the CDF platform (just purely from my own perspective).

Regards
Z.Liu

A “standard” Streamlit installation runs native Python - Streamlit in Cognite Data Fusion is based on “stlite” - a browser implementation, and has some additional limitations regarding third party libraries unfortunately. Due to these limitations, Streamlit in Cognite Data Fusion is not meant as a replacement for all other Streamlit installations - its main use is to provide easy access to a Streamlit environment that covers most (but not all) needs and enable power users to get started building and deploying apps without having to worry about infrastructure.

Would having the possibility to use private packages from pypi help? The restriction to only use pure Python wheels would still apply though.

Hope this clarifies.

Hi again,

Thanks a lot for the clarification. I think the private packages from pypi will help if it allows compiled modules, as the core issue in my case is that I DO NOT want to share all the core source code. Anyway, this might be only a special case from my side. Nice to know the limitation, though.

Thanks!
Regards
Z.Liu