fix: guard choices[0] and message=None before content access#5
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OpenAI-compatible APIs can return empty choices on error or content filtering; Gemini returns choices[0].message=None on PROHIBITED_CONTENT (HTTP 200). Both cause unhandled exceptions at runtime. Adds guard before every bare choices[0].message.content access (8 sites, 5 files).
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Summary
OpenAI-compatible APIs can return empty
choiceson error or rate-limiting, causingIndexErroratchoices[0]. Gemini additionally returnschoices[0].message = NoneonPROHIBITED_CONTENTsafety filtering (HTTP 200 — no exception raised), causingAttributeErrorat.content.This PR adds:
before every bare
choices[0].message.contentaccess (8 sites, 5 files).Files changed
m02_llm_fundamentals/s01_basic_llm_invocation.pym02_llm_fundamentals/s02_conversational_agent.pym02_llm_fundamentals/s03_llm_temperature.py(two different response vars)m03_function_calling_tools/s01_custom_function_calling.pym03_function_calling_tools/s02_api_invocation.pyStatic analysis via pact found all 8 sites; post-fix scan returns 0 violations.