The package does not support the operating system on which your Streamlit app is running. E.g. You see ERROR: No matching distribution found for pywin32 while deploying to Streamlit Cloud. The pywin32 module provides access to many of the Windows APIs from Python. Apps deployed to Streamlit Cloud are executed in a Linux environment. As such, pywin32 fails to install on non-Windows systems, including on Streamlit Cloud. The solution is to either exclude pywin32 from your requirements file, or deploy your app on a cloud service offering Windows machines.
Related forum posts:
https://discuss.streamlit.io/t/error-no-matching-distribution-found-for-base64/15758
https://discuss.streamlit.io/t/error-could-not-find-a-version-that-satisfies-the-requirement-pywin32-301-from-versions-none/15343/2
