Function pythonPromptFunctionLegacy

src/prompts/processors/python.ts:49–76

(
  filePath: string,
  context: {
    vars: Record<string, VarValue>;
    provider?: ApiProvider;
    config?: Record<string, unknown>;
  },
)

 * @returns The prompts
 */
export const pythonPromptFunctionLegacy = async (
  filePath: string,
  context: {
    vars: Record<string, VarValue>;
    provider?: ApiProvider;
    config?: Record<string, unknown>;
  },
): Promise<string> => {
  invariant(context?.provider?.id, 'provider.id is required');
  const transformedContext: PromptFunctionContext = {
    vars: context.vars,
    provider: {
      id:
        typeof context.provider?.id === 'function' ? context.provider?.id() : context.provider?.id,
      label: context.provider?.label,
    },
    config: context.config ?? {},
  };
  const options: PythonShellOptions = {
    mode: 'text',
    pythonPath: getEnvString('PROMPTFOO_PYTHON', 'python'),
    args: [safeJsonStringify(transformedContext) as string],
  };
  logger.debug(`Executing python prompt script ${filePath}`);
  const results = (await PythonShell.run(filePath, options)).join('\n');
  logger.debug(`Python prompt script ${filePath} returned: ${results}`);
  return results;
};

/**
 * Processes a Python file to extract or execute a function as a prompt.