javascript - Uncaught SyntaxError: Unexpected token < in JSON at position 0 at JSON.parse (<anonymous>) -


i trying postings in database list. keep getting error saying

uncaught syntaxerror: unexpected token < in json @ position 0 @ json.parse (<anonymous>) @ object.success (open:42) @ j (jquery.min.js:2) @ object.firewith [as resolvewith] (jquery.min.js:2) @ x (jquery.min.js:5) @ xmlhttprequest.b (jquery.min.js:5)

i applied codes https://code.tutsplus.com/tutorials/creating-a-web-app-from-scratch-using-python-flask-and-mysql-part-4--cms-23187 , works when followed same way. doing notice board, , should return stored postings when open page. need helps. thanks. below codes.

app.py

@app.route('/getopenlist') def showopenlist(): try:     if session.get('user'):         con = mysql.connect()         cursor = con.cursor()         cursor.callproc('sp_showopenlist')         openlist = cursor.fetchall()          openlist_dict = []         lists in openlist:             openlist_dict = {                     'id': lists[0],                     'title': lists[1],                     'content': lists[2],                     'writer': lists[3],                     'date': lists[4]}             listopen_dict.append(openlist_dict)         return json.dumps(listopen_dict)     else:         return render_template('error.html') except exception e:     return render_template('error.html')

sp_showopenlist "select * open".

ann_etc.html

....  <meta charset="utf-8"/>     <meta name="viewport" content="width=device-width, initial-scale=1"/>     <link rel="stylesheet" href="/static/css/style.css"/>     <script type="text/javascript" src="phonegap.js" charset="utf8"></script>      <script src="../static/js/jquery.min.js"></script>  <script>     $(function(){         $.ajax({             url : '/getopenlist',             type : 'get',             success: function(res){                  var openobj = json.parse(res);                 $('#ulist').empty();                 $('#listtemplate').tmpl(openobj).appendto('#ulist');              },             error: function(error){                 console.log(error);            }     }); }); </script> </head>                   <script id="listtemplate" type="text/x-jquery-tmpl"> <li class="list-group-item">     <div class="checkbox">         <label>             ${id}              |         </label>      </div>     <div class="checkbox">         <label>             ${title}             |             ${writer}             |             ${date}         </label>     </div> </li>   </script>  <div class="row"> <div class="col-md-12">  <div class="panel-body">         <ul id="ulist" class="list-group" display="inline-block">         </ul>     </div>   </div> </div>


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