file = open("D:/forecast4/trunk/databases/Demo/template.xml", "r")
print(file.read())

constructor(jupyter){
    this.__kernel = jupyter.notebook.kernel;
}

 async executePythonCode(pythonCode){

    var self=this;

    return new Promise(function(resolve, reject) {

        var isResolved=false;

        var callbacks = {
                shell : {
                        reply : (data)=>{
                            var content = data.content
                            switch(content.status){
                                case 'ok':
                                    isResolved=true;
                                    resolve();
                                    break;
                                case 'error':
                                    reject(content.evalue)
                                    break;
                                default:
                                    throw new Error('Not yet implemented content status "' + content.status + '"');
                            }

                        },
                },
                iopub : {
                         output : (data)=>{
                            var content = data.content;
                            switch(content.name){
                                case 'stderr':
                                    if(isResolved){
                                        var message = 'Could not handle strr output while executing Python code '
                                                    +'because Promise already has been resolved:n' + content.text;
                                        console.error(message);
                                    }
                                    reject(content.text);
                                    break;
                                case 'stdout':
                                    if(isResolved){
                                        var message = 'Could not handle stout output while executing Python code '
                                                    +'because Promise already has been resolved:n' + content.text;
                                        console.error(message);
                                    }
                                    resolve(content.text);
                                    break;
                                case undefined:
                                    reject(content.ename + ': ' + content.evalue);
                                    break;
                                default:
                                    throw new Error('Not yet implemented content type "' + content.name + '"');
                            }
                         }
                }
        };

        self.__kernel.execute(pythonCode, callbacks);
    });
}