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import os
from typing import Optional, Type
from langchain_core.pydantic_v1 import BaseModel, Field
from langchain.callbacks.manager import CallbackManagerForToolRun
from langchain.tools.base import BaseTool
from langchain.tools.file_management.utils import (
INVALID_PATH_TEMPLATE,
BaseFileToolMixin,
FileValidationError,
)
class FileDeleteInput(BaseModel):
"""Input for DeleteFileTool."""
file_path: str = Field(..., description="Path of the file to delete")
class DeleteFileTool(BaseFileToolMixin, BaseTool):
"""Tool that deletes a file."""
name: str = "file_delete"
args_schema: Type[BaseModel] = FileDeleteInput
description: str = "Delete a file"
def _run(
self,
file_path: str,
run_manager: Optional[CallbackManagerForToolRun] = None,
) -> str:
try:
file_path_ = self.get_relative_path(file_path)
except FileValidationError:
return INVALID_PATH_TEMPLATE.format(arg_name="file_path", value=file_path)
if not file_path_.exists():
return f"Error: no such file or directory: {file_path}"
try:
os.remove(file_path_)
return f"File deleted successfully: {file_path}."
except Exception as e:
return "Error: " + str(e)
# TODO: Add aiofiles method
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