byron mackay•6mo ago

When I attempt to get a prompt from

FIXED: Force reinstalling langfuse's python package seemed to do the trick When I attempt to get a prompt from Langfuse, I'm getting the following error:

Error while fetching prompt 'PROMPT_NAME-latest': 'Prompt_Chat' object has no attribute 'type'
Traceback (most recent call last):
  File "/Users/byronmackay/app/venv/lib/python3.12/site-packages/langfuse/client.py", line 609, in _fetch_prompt_and_update_cache
    if promptResponse.type == "chat":
       ^^^^^^^^^^^^^^^^^^^
AttributeError: 'Prompt_Chat' object has no attribute 'type'

Error while fetching prompt 'PROMPT_NAME-latest': 'Prompt_Chat' object has no attribute 'type'
Traceback (most recent call last):
  File "/Users/byronmackay/app/venv/lib/python3.12/site-packages/langfuse/client.py", line 609, in _fetch_prompt_and_update_cache
    if promptResponse.type == "chat":
       ^^^^^^^^^^^^^^^^^^^
AttributeError: 'Prompt_Chat' object has no attribute 'type'

This is a self hosted version of Langfuse using the latest. The return json does have the type and the object Prompt_Chat has the property type. Any ideas why I'd be getting this error?

3 Replies

byron mackay•5mo ago

Environment: - langfuse==2.27.1 - language: python - docker file is up to date JSON response

{
  "id": "clvbdigib000r13c73mrbbc3e",
  "createdAt": "2024-04-22T19:52:02.580Z",
  "updatedAt": "2024-04-22T19:52:19.451Z",
  "projectId": "cltyrwd9100012wl7n2r3mrop",
  "createdBy": "cltyrsxly00002wl75il4gufi",
  "prompt": "Determine how the company...",
  "name": "PROMPT_NAME",
  "version": 1,
  "type": "text",
  "isActive": true,
  "config": {},
  "tags": [
    "trend"
  ]
}

{
  "id": "clvbdigib000r13c73mrbbc3e",
  "createdAt": "2024-04-22T19:52:02.580Z",
  "updatedAt": "2024-04-22T19:52:19.451Z",
  "projectId": "cltyrwd9100012wl7n2r3mrop",
  "createdBy": "cltyrsxly00002wl75il4gufi",
  "prompt": "Determine how the company...",
  "name": "PROMPT_NAME",
  "version": 1,
  "type": "text",
  "isActive": true,
  "config": {},
  "tags": [
    "trend"
  ]
}

Oddly enough, even though the type in the json is "text", the code returns a Prompt_Chat object instead of a Prompt_Text object On top of that, I see that the Prompt_Chat and Prompt_Text objects do in fact have a type property

byron mackay•5mo ago

byron mackay•5mo ago

FIXED: force reinstalled langfuse's package did the trick