function post(url, data = {}, headers = {}) {
    new Promise((resolve, reject) => {
        const xhr = new XMLHttpRequest();
        xhr.open('POST', url);
        
        // 设置自定义请求头
        for (const key in headers) {
          if (headers.hasOwnProperty(key)) {
            xhr.setRequestHeader(key, headers[key]);
          }
        }
        
        xhr.onload = () => {
            if (xhr.status >= 200 && xhr.status <= 299) {
                resolve(JSON.parse(xhr.responseText));
            } else {
                reject(new Error(`Error: ${xhr.status} - ${xhr.statusText}`));
            }
        };
        xhr.onerror = () => {
            reject(new Error('Network request failed'));
        };
        xhr.send(JSON.stringify(data));
        return responseData;
    });
}

var $builtinmodule = function (name) {
	var mod = {__name__: new Sk.builtin.str("requests")}
	mod.post = new Sk.builtin.func(function(url, json, headers) {
        return post(url,json,headers);
    });
	return mod;
}