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Fixed Regular expression (#2933)

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###  https://github.com/hwchase17/langchain/issues/2898
Instead of `"Action" and "Action Input"` keywords, we are getting
`"Action 1" and "Action 1 Input" or "Action Input 1" ` from
**gpt-3.5-turbo**

 Updated the Regular expression to handle all these cases
 
Attaching the screenshot of the result from the updated Regular
expression.
 
<img width="1036" alt="Screenshot 2023-04-16 at 1 39 00 AM"
src="https://user-images.githubusercontent.com/55012400/232251184-23ca6cc2-7229-411a-b6e1-53b2f5ec18a5.png">
This commit is contained in:
Azam Iftikhar 2023-04-16 21:46:50 +05:30 committed by GitHub
parent 88d3ce12b8
commit 1e655d5ffd
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 5 additions and 5 deletions
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2
docs/modules/agents/agents/custom_agent_with_tool_retrieval.ipynb
View File

@ -315,7 +315,7 @@
" log=llm_output,\n",
" )\n",
" # Parse out the action and action input\n",
" regex = r\"Action: (.*?)[\\n]*Action Input:[\\s]*(.*)\"\n",
" regex = r\"Action\\s*\\d*\\s*:(.*?)\\nAction\\s*\\d*\\s*Input\\s*\\d*\\s*:[\\s]*(.*)\"\n",
" match = re.search(regex, llm_output, re.DOTALL)\n",
" if not match:\n",
" raise ValueError(f\"Could not parse LLM output: `{llm_output}`\")\n",

2
docs/modules/agents/agents/custom_llm_agent.ipynb
View File

@ -204,7 +204,7 @@
" log=llm_output,\n",
" )\n",
" # Parse out the action and action input\n",
" regex = r\"Action: (.*?)[\\n]*Action Input:[\\s]*(.*)\"\n",
" regex = r\"Action\\s*\\d*\\s*:(.*?)\\nAction\\s*\\d*\\s*Input\\s*\\d*\\s*:[\\s]*(.*)\"\n",
" match = re.search(regex, llm_output, re.DOTALL)\n",
" if not match:\n",
" raise ValueError(f\"Could not parse LLM output: `{llm_output}`\")\n",

2
docs/modules/agents/agents/custom_llm_chat_agent.ipynb
View File

@ -206,7 +206,7 @@
" log=llm_output,\n",
" )\n",
" # Parse out the action and action input\n",
" regex = r\"Action: (.*?)[\\n]*Action Input:[\\s]*(.*)\"\n",
" regex = r\"Action\\s*\\d*\\s*:(.*?)\\nAction\\s*\\d*\\s*Input\\s*\\d*\\s*:[\\s]*(.*)\"\n",
" match = re.search(regex, llm_output, re.DOTALL)\n",
" if not match:\n",
" raise ValueError(f\"Could not parse LLM output: `{llm_output}`\")\n",

2
docs/use_cases/agents/custom_agent_with_plugin_retrieval.ipynb
View File

@ -375,7 +375,7 @@
" log=llm_output,\n",
" )\n",
" # Parse out the action and action input\n",
" regex = r\"Action: (.*?)[\\n]*Action Input:[\\s]*(.*)\"\n",
" regex = r\"Action\\s*\\d*\\s*:(.*?)\\nAction\\s*\\d*\\s*Input\\s*\\d*\\s*:[\\s]*(.*)\"\n",
" match = re.search(regex, llm_output, re.DOTALL)\n",
" if not match:\n",
" raise ValueError(f\"Could not parse LLM output: `{llm_output}`\")\n",

2
langchain/agents/mrkl/base.py
View File

@ -42,7 +42,7 @@ def get_action_and_input(llm_output: str) -> Tuple[str, str]:
if FINAL_ANSWER_ACTION in llm_output:
return "Final Answer", llm_output.split(FINAL_ANSWER_ACTION)[-1].strip()
# \s matches against tab/newline/whitespace
regex = r"Action: (.*?)[\n]*Action Input:[\s]*(.*)"
regex = r"Action\s*\d*\s*:(.*?)\nAction\s*\d*\s*Input\s*\d*\s*:[\s]*(.*)"
match = re.search(regex, llm_output, re.DOTALL)
if not match:
raise ValueError(f"Could not parse LLM output: `{llm_output}`")