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fix stack trace when stack is not built.

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currently this is the output when you run a distribution locally without running `llama stack build`:

```
Traceback (most recent call last):
  File "/Users/charliedoern/Documents/llama-sdk.py", line 25, in <module>
    models = client.models.list()
             ^^^^^^^^^^^^^^^^^^^^
  File "/Users/charliedoern/Documents/llama-stack-client-python/src/llama_stack_client/resources/models.py", line 107, in list
    raise exc
  File "/Users/charliedoern/Documents/llama-stack-client-python/src/llama_stack_client/resources/models.py", line 95, in list
    return self._get(
           ^^^^^^^^^^
  File "/Users/charliedoern/Documents/llama-stack-client-python/src/llama_stack_client/_base_client.py", line 1212, in get
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/charliedoern/Documents/llama-stack/llama_stack/distribution/library_client.py", line 168, in request
    return asyncio.run(self.async_client.request(*args, **kwargs))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.10/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.10/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.10/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/base_events.py", line 654, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/charliedoern/Documents/llama-stack/llama_stack/distribution/library_client.py", line 258, in request
    if not self.endpoint_impls:
           ^^^^^^^^^^^^^^^^^^^
AttributeError: 'AsyncLlamaStackAsLibraryClient' object has no attribute 'endpoint_impls'
```

the intended exception is never raised, initialize endpoint_impls properly so it is `None` and the ValueError can be raised

Signed-off-by: Charlie Doern <cdoern@redhat.com>
This commit is contained in:
Charlie Doern 2025-02-04 12:52:48 -05:00
parent a79a083e39
commit ff3cb032a6
2 changed files with 8 additions and 1 deletions
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8
docs/source/getting_started/index.md
View file

@ -134,7 +134,13 @@ client = (
) # or create_http_client() depending on the environment you picked
# List available models
models = client.models.list()
try:
models = client.models.list()
except ValueError as e:
print(e)
sys.exit(1)
print("--- Available models: ---")
for m in models:
print(f"- {m.identifier}")

1
llama_stack/distribution/library_client.py
View file

@ -198,6 +198,7 @@ class AsyncLlamaStackAsLibraryClient(AsyncLlamaStackClient):
async def initialize(self) -> bool:
try:
self.endpoint_impls = None
self.impls = await construct_stack(self.config, self.custom_provider_registry)
except ModuleNotFoundError as _e:
cprint(_e.msg, "red")