Fixing minor bug in chat stream output - python error being serialized

[roblg]

This is a proposed fix for a minor bug I noticed while using simonw/llm to connect to a local privategpt instance -- I'm seeing serialized python error strings in the output. I'm not entirely sure why this shows up in this tool, but not via the UI, but it might have to do with how the output is parsed or something.

Behavior I was seeing:

Containers, in the context of computing and software development, are lightweight, standalone, executable software packages that include everything needed to run a piece of software: code, runtime, system tools, system libraries, and 

<... snip additional output...>

Containers have become a key component in modern software development and deployment practices, particularly in the context of microservices architectures, where applications are built as a collection of loosely coupled services.Error: can only concatenate str (not "NoneType") to str

The Error: can only concatenate str (not "NoneType") to str seems to be coming from the server-side. There might be a better way to fix this, but this seemed to work (and aligns w/ my expectations of a fix for NoneType being concatenated w/ str).

[imartinez]

Good catch!

[github-actions]

Stale pull request