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Tool

Calculator

Bases: BaseTool

Source code in griptape/tools/calculator/tool.py 
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class Calculator(BaseTool):
    @activity(
        config={
            "description": "Can be used for computing simple numerical or algebraic calculations in Python",
            "schema": Schema(
                {
                    Literal(
                        "expression",
                        description="Arithmetic expression parsable in pure Python. Single line only. "
                        "Don't use variables. Don't use any imports or external libraries",
                    ): str
                }
            ),
        }
    )
    def calculate(self, params: dict) -> BaseArtifact:
        import numexpr  # type: ignore

        try:
            expression = params["values"]["expression"]

            return TextArtifact(numexpr.evaluate(expression))
        except Exception as e:
            return ErrorArtifact(f"error calculating: {e}")

calculate(params)

Source code in griptape/tools/calculator/tool.py 
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@activity(
    config={
        "description": "Can be used for computing simple numerical or algebraic calculations in Python",
        "schema": Schema(
            {
                Literal(
                    "expression",
                    description="Arithmetic expression parsable in pure Python. Single line only. "
                    "Don't use variables. Don't use any imports or external libraries",
                ): str
            }
        ),
    }
)
def calculate(self, params: dict) -> BaseArtifact:
    import numexpr  # type: ignore

    try:
        expression = params["values"]["expression"]

        return TextArtifact(numexpr.evaluate(expression))
    except Exception as e:
        return ErrorArtifact(f"error calculating: {e}")