From 4be1d76fd7da5c4c0b04f1ead59e98bcf54d1dfb Mon Sep 17 00:00:00 2001 From: Andrzej Pomirski Date: Tue, 17 Mar 2026 18:37:32 +0100 Subject: [PATCH] fix: empty stdout/stderr produces str(content) instead of empty logs When both stdout and stderr are empty strings, the `if parts else str(content)` fallback produced the raw dict representation as logs. Drop the fallback so logs is correctly empty. --- litellm/llms/anthropic/chat/handler.py | 2 +- litellm/llms/anthropic/chat/transformation.py | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/litellm/llms/anthropic/chat/handler.py b/litellm/llms/anthropic/chat/handler.py index 7d5fa2a559..88d9ee6596 100644 --- a/litellm/llms/anthropic/chat/handler.py +++ b/litellm/llms/anthropic/chat/handler.py @@ -711,7 +711,7 @@ class ModelResponseIterator: parts.append(content["stdout"]) if content.get("stderr"): parts.append(f"STDERR: {content['stderr']}") - logs = "".join(parts) if parts else str(content) + logs = "".join(parts) else: logs = str(content) tool_input = self._server_tool_inputs.get(call_id, {}) diff --git a/litellm/llms/anthropic/chat/transformation.py b/litellm/llms/anthropic/chat/transformation.py index 033afea2ff..21ca8db825 100644 --- a/litellm/llms/anthropic/chat/transformation.py +++ b/litellm/llms/anthropic/chat/transformation.py @@ -1775,7 +1775,7 @@ class AnthropicConfig(AnthropicModelInfo, BaseConfig): parts.append(content["stdout"]) if content.get("stderr"): parts.append(f"STDERR: {content['stderr']}") - logs = "".join(parts) if parts else str(content) + logs = "".join(parts) else: logs = str(content) code_interpreter_results.append(