docs/code-comparisons/langchain_snippets/hamilton_fallbacks.py

import hamilton_anthropic
from hamilton import driver

anthropic_driver = (
    driver.Builder()
    .with_modules(hamilton_anthropic)
    .with_config({"provider": "anthropic"})
    .build()
)
openai_driver = (
    driver.Builder()
    .with_modules(hamilton_anthropic)
    .with_config({"provider": "openai"})
    .build()
)
try:
    print(
        anthropic_driver.execute(
            ["joke_response"],
            inputs={"topic": "ice cream"}
        )
    )
except Exception:
    # this is the current way to do fall backs
    print(
        openai_driver.execute(
            ["joke_response"],
            inputs={"topic": "ice cream"}
        )
    )