mirror of
https://github.com/Mintplex-Labs/langchain-python.git
synced 2026-07-19 13:26:32 -04:00
Peng Wang
26 lines
793 B
Python
26 lines
793 B
Python
import sys
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from io import StringIO
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from typing import Dict, Optional
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from pydantic import BaseModel, Field
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class PythonREPL(BaseModel):
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"""Simulates a standalone Python REPL."""
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globals: Optional[Dict] = Field(default_factory=dict, alias="_globals")
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locals: Optional[Dict] = Field(default_factory=dict, alias="_locals")
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def run(self, command: str) -> str:
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"""Run command with own globals/locals and returns anything printed."""
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old_stdout = sys.stdout
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sys.stdout = mystdout = StringIO()
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try:
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exec(command, self.globals, self.locals)
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sys.stdout = old_stdout
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output = mystdout.getvalue()
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except Exception as e:
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sys.stdout = old_stdout
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output = repr(e)
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return output
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