Forcing change to python3 and force change on title

Author: amicis31

v3/bottle_server.py

@@ -13,11 +13,12 @@
 # compatibility from 2.x to 3.x Ii was running from /v3/).
 
 from bottle import route, get, request, run, template, static_file
-import StringIO # NB: don't use cStringIO since it doesn't support unicode!!!
+#import StringIO # NB: don't use cStringIO since it doesn't support unicode!!!
+import io
 import json
 import pg_logger
 import urllib
-import urllib2
+#import urllib2
 import os
 
 # dummy routes for testing only
@@ -39,15 +40,15 @@ def index(filepath):
 
 @get('/exec')
 def get_exec():
-  out_s = StringIO.StringIO()
+  out_s = io.StringIO()
 
   def json_finalizer(input_code, output_trace):
     ret = dict(code=input_code, trace=output_trace)
     json_output = json.dumps(ret, indent=None)
     out_s.write(json_output)
 
   options = json.loads(request.query.options_json)
-
+  print(request.query.user_script)
   pg_logger.exec_script_str_local(request.query.user_script,
                                   request.query.raw_input_json,
                                   options['cumulative_mode'],
@@ -107,8 +108,8 @@ def submit_matrix_problem():
   values = {'user_script' : script}
 
   data = urllib.urlencode(values)
-  req = urllib2.Request(url, data)
-  response = urllib2.urlopen(req)
+  req = urllib.request.Request(url, data)
+  response = urllib.request.urlopen(req)
   the_page = response.read()
   return the_page
 

v3/js/pytutor.js

@@ -554,15 +554,15 @@ ExecutionVisualizer.prototype.render = function() {
 
   if (this.params.editCodeBaseURL) {
     // kinda kludgy
-    var pyVer = '2'; // default
+    var pyVer = '3'; // default
     if (this.params.lang === 'js') {
       pyVer = 'js';
     } else if (this.params.lang === 'ts') {
       pyVer = 'ts';
     } else if (this.params.lang === 'java') {
       pyVer = 'java';
-    } else if (this.params.lang === 'py3') {
-      pyVer = '3';
+    } else if (this.params.lang === 'py2') {
+      pyVer = '2';
     } else if (this.params.lang === 'c') {
       pyVer = 'c';
     } else if (this.params.lang === 'cpp') {
@@ -590,7 +590,7 @@ ExecutionVisualizer.prototype.render = function() {
     } else if (this.params.lang === 'java') {
       this.domRoot.find('#langDisplayDiv').html('Java');
     } else if (this.params.lang === 'py2') {
-      this.domRoot.find('#langDisplayDiv').html('Python 2.7');
+      this.domRoot.find('#langDisplayDiv').html('Python 3.3');
     } else if (this.params.lang === 'py3') {
       this.domRoot.find('#langDisplayDiv').html('Python 3.3');
     } else if (this.params.lang === 'c') {