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anthropic: emit informative error message if there are only system messages in a prompt #30822

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Merged
merged 9 commits into from
May 16, 2025
Merged

anthropic: emit informative error message if there are only system messages in a prompt #30822

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a8edd4d
catch if there are only system messages in a prompt for anthropic
mathislindner Apr 14, 2025
a25dd8e
fixed linting
mathislindner Apr 14, 2025
03cdcb1
handle Anthropic bad requests error if only system messages
mathislindner Apr 14, 2025
2fe3843
fixed linting from PR #30822
mathislindner Apr 14, 2025
12b9f0a
Merge branch 'master' into master
mathislindner Apr 19, 2025
de31525
Merge branch 'master' into master
mathislindner Apr 23, 2025
a26929f
Merge branch 'master' into master
mathislindner May 16, 2025
b90b207
Merge branch 'master' into mathislindner/master
ccurme May 16, 2025
935e088
raise original error type
ccurme May 16, 2025
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3 changes: 2 additions & 1 deletion libs/partners/anthropic/langchain_anthropic/chat_models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -193,8 +193,9 @@ def _format_messages(
"""
system: Union[str, list[dict], None] = None
formatted_messages: list[dict] = []

merged_messages = _merge_messages(messages)
if all(message.type == "system" for message in merged_messages):
raise ValueError("Received only system message(s).")
for i, message in enumerate(merged_messages):
if message.type == "system":
if system is not None:
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