IncompatibleClient

This exception occurs during connection initialization when the evals SDK version is not compatible with the connected Fiddler platform version. This ensures that users are aware of version mismatches that could cause unexpected behavior or missing functionality. The message names both versions, for example “Fiddler Evals SDK version (0.8.0) is not compatible with your Fiddler Platform version (26.20.0).”

Example

from fiddler_evals import init
from fiddler_evals.exceptions import IncompatibleClient

try:
    init(url="https://your-instance.fiddler.ai", token="your-api-key")
except IncompatibleClient as e:
    print(e.message)  # upgrade the SDK or contact your administrator

Initialize the incompatible client exception.

Parameters

str

required

Version of the Fiddler server

str | None

default:"None"

Optional custom error message

message

Type: str Value: 'Fiddler Evals SDK version ({client_version}) is not compatible with your Fiddler Platform version ({server_version}).' Formatted message showing both client and server versions

Fiddler Python Client SDK

Fiddler Evals SDK

Fiddler OTel SDK

Fiddler LangGraph SDK

Fiddler LangChain SDK

Fiddler Google ADK SDK

Fiddler Strands Agent SDK

Fiddler OTel JS SDK

Fiddler LangGraph JS SDK

Fiddler LangChain JS SDK

Example

Parameters

message

​Example

​Parameters

​message

Example

Parameters

message