init

tools/calculator.py

@@ -3,25 +3,25 @@ from langchain_core.tools import BaseTool
 
 
 class CalculatorTool(BaseTool):
-    """A simple calculator tool for mathematical operations"""
+    """用于数学运算的简单计算器工具"""
     
     name: str = "calculator"
     description: str = "Perform mathematical calculations. Input should be a mathematical expression like '2 + 2' or '10 * (3 + 5)'"
     
     def _run(self, expression: str) -> str:
-        """Evaluate a mathematical expression"""
+        """计算数学表达式"""
         try:
-            # Security: Only allow safe mathematical operations
+            # 安全：仅允许安全的数学运算
             allowed_chars = set("0123456789+-*/(). ")
             if not all(c in allowed_chars for c in expression):
                 return "Error: Expression contains invalid characters"
             
-            # Evaluate the expression
+            # 计算表达式
             result = eval(expression)
             return f"Result: {result}"
         except Exception as e:
             return f"Error calculating expression: {str(e)}"
     
     async def _arun(self, expression: str) -> str:
-        """Async version of the tool"""
+        """工具的异步版本"""
         return self._run(expression)