fix: handle None state values in skill_toolset after session rewind#5204
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enjoykumawat wants to merge 1 commit intogoogle:mainfrom
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fix: handle None state values in skill_toolset after session rewind#5204enjoykumawat wants to merge 1 commit intogoogle:mainfrom
enjoykumawat wants to merge 1 commit intogoogle:mainfrom
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Session rewind sets state keys to None as deletion markers. dict.get() returns None (not the default) when the key exists with value None, causing list(None) to raise TypeError. Change `state.get(key, [])` to `state.get(key) or []` at both call sites so that explicit None values fall back to an empty list. Github-Issue: google#5193 Reported-by: SAMFVH
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Summary
Fixes #5193 — After session rewind,
LoadSkillTool.run_asynccrashes withTypeError: 'NoneType' object is not iterable.Root cause: Session rewind sets
adk_activated_skill_{agent_name}toNoneas a deletion marker.dict.get(key, default)only returns the default when the key is absent — when the key exists with valueNone, it returnsNone. Solist(None)raisesTypeError.Fix: Change
state.get(state_key, [])tostate.get(state_key) or []at both call sites (lines 155 and 794) so that explicitNonevalues fall back to an empty list.As identified by @surajksharma07 in the issue comments and confirmed in production by @SAMFVH.
Changes
src/google/adk/tools/skill_toolset.py: Fix bothstate.get()calls to handle explicitNoneTest plan
test_skill_toolset.pytests pass