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Fixing blank thoughts in verbose for "_Exception" Action (#5331)

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Fixed the issue of blank Thoughts being printed in verbose when
`handle_parsing_errors=True`, as below:

Before Fix:
```
Observation: There are 38175 accounts available in the dataframe.
Thought:
Observation: Invalid or incomplete response
Thought:
Observation: Invalid or incomplete response
Thought:
```

After Fix:
```
Observation: There are 38175 accounts available in the dataframe.
Thought:AI: {
    "action": "Final Answer",
    "action_input": "There are 38175 accounts available in the dataframe."
}
Observation: Invalid Action or Action Input format
Thought:AI: {
    "action": "Final Answer",
    "action_input": "The number of available accounts is 38175."
}
Observation: Invalid Action or Action Input format
```

@vowelparrot currently I have set the colour of thought to green (same
as the colour when `handle_parsing_errors=False`). If you want to change
the colour of this "_Exception" case to red or something else (when
`handle_parsing_errors=True`), feel free to change it in line 789.
This commit is contained in:
Deepak S V 2023-05-27 21:14:16 -07:00 committed by GitHub
parent c49c6ac97a
commit c6e5d90eff
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2
langchain/agents/agent.py
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@ -785,6 +785,8 @@ class AgentExecutor(Chain):
else:
raise ValueError("Got unexpected type of `handle_parsing_errors`")
output = AgentAction("_Exception", observation, text)
if run_manager:
run_manager.on_agent_action(output, color="green")
tool_run_kwargs = self.agent.tool_run_logging_kwargs()
observation = ExceptionTool().run(
output.tool_input,