mirror of
https://github.com/Mintplex-Labs/langchain-python.git
synced 2026-07-21 00:35:23 -04:00
Ankush Gola
82baecc892
This PR adds * `ZeroShotAgent.as_sql_agent`, which returns an agent for interacting with a sql database. This builds off of `SQLDatabaseChain`. The main advantages are 1) answering general questions about the db, 2) access to a tool for double checking queries, and 3) recovering from errors * `ZeroShotAgent.as_json_agent` which returns an agent for interacting with json blobs. * Several examples in notebooks --------- Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
31 lines
927 B
Python
31 lines
927 B
Python
"""A tool for running python code in a REPL."""
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from pydantic import Field
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from langchain.python import PythonREPL
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from langchain.tools.base import BaseTool
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def _get_default_python_repl() -> PythonREPL:
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return PythonREPL(_globals=globals(), _locals=None)
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class PythonREPLTool(BaseTool):
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"""A tool for running python code in a REPL."""
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name = "Python REPL"
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description = (
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"A Python shell. Use this to execute python commands. "
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"Input should be a valid python command. "
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"If you expect output it should be printed out."
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)
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python_repl: PythonREPL = Field(default_factory=_get_default_python_repl)
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def _run(self, query: str) -> str:
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"""Use the tool."""
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return self.python_repl.run(query)
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async def _arun(self, query: str) -> str:
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"""Use the tool asynchronously."""
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raise NotImplementedError("PythonReplTool does not support async")
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