Add code to use openai_base_url and use OpenAI's model lister function

[zestysoft]

I had some trouble running fabric locally due to some hard coded openai urls in the fetch_available_models functions which required having a valid OPENAI_API_KEY.

This should let fabric communicate with other open_api compliant servers.

I also threw in replacement code to use the model listing function that's included with the OpenAI class.

Finally I've added some detail to the error messages if an exception is thrown while retrieving the list of models.

[meirm]

This commit generates an error:
fabric --setup
Traceback (most recent call last):
File "/Users/meirm/Library/Caches/pypoetry/virtualenvs/fabric-M01m3Wmw-py3.11/bin/fabric", line 3, in
from installer import cli
File "/Users/meirm/git/github/fabric/installer/init.py", line 1, in
from .client.cli import main as cli
File "/Users/meirm/git/github/fabric/installer/client/cli/init.py", line 1, in
from .fabric import main
File "/Users/meirm/git/github/fabric/installer/client/cli/fabric.py", line 1, in
from .utils import Standalone, Update, Setup, Alias
File "/Users/meirm/git/github/fabric/installer/client/cli/utils.py", line 273
print(f'{e.message} trying to access {e.request.url}: {getattr(e.cause, 'args', [''])}')

[zestysoft]

This commit generates an error:

I see the traceback, but not the error?

[meirm]

This was the line: print(f'{e.message} trying to access {e.request.url}: {getattr(e.__cause__, 'args', [''])}') And the fix: print(f"{e.message} trying to access {e.request.url}: {getattr(e.__cause__, 'args', [''])}”) And there was another instance but the code changed and now with the new merges it is working again

…

On 12 Mar 2024, at 22:20, Ian Brown ***@***.***> wrote: This commit generates an error: I see the traceback, but not the error? — Reply to this email directly, view it on GitHub <#189 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAEGWIM2WNFETDFDHRDGCNTYX5WSJAVCNFSM6AAAAABER4I6YKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOJSGYYDOMZVGM>. You are receiving this because you commented.

[zestysoft]

Looks like this PR got clobbered here
73c505c

I'll re-submit and apply that fix, ty!