diff --git a/opengraph/opengraph.py b/opengraph/opengraph.py
index 9cedb97..6594a49 100644
--- a/opengraph/opengraph.py
+++ b/opengraph/opengraph.py
@@ -1,7 +1,12 @@
 # encoding: utf-8
 
 import re
-import urllib2
+
+try:
+    import urllib2
+except ImportError:
+    from urllib import request as urllib2
+
 try:
     from bs4 import BeautifulSoup
 except ImportError:
@@ -59,7 +64,7 @@ def parser(self, html):
         else:
             doc = html
         ogs = doc.html.head.findAll(property=re.compile(r'^og'))
-        for og in ogs:
+        for og in ogs: 
             if og.has_attr(u'content'):
                 self[og[u'property'][3:]]=og[u'content']
         # Couldn't fetch all attrs from og tags, try scraping body
@@ -72,7 +77,13 @@ def parser(self, html):
                         pass
 
     def valid_attr(self, attr):
-        return hasattr(self, attr) and len(self[attr]) > 0
+        has_attr_result = False
+        try:
+            has_attr_result = hasattr(self, attr)
+        except Exception as e: 
+            has_attr_result = False
+            
+        return has_attr_result and len(self[attr]) > 0
 
     def is_valid(self):
         return all([self.valid_attr(attr) for attr in self.required_attrs])
diff --git a/opengraph/test.py b/opengraph/test.py
index 3835b8f..47cf289 100644
--- a/opengraph/test.py
+++ b/opengraph/test.py
@@ -19,8 +19,8 @@
 class test(unittest.TestCase):
 		
     def test_url(self):
-        data = opengraph.OpenGraph(url='http://vimeo.com/896837')
-        self.assertEqual(data['url'], 'http://vimeo.com/896837')
+        data = opengraph.OpenGraph(url='https://vimeo.com/896837')
+        self.assertEqual(data['url'], 'https://vimeo.com/896837')
         
     def test_isinstace(self):
         data = opengraph.OpenGraph()
@@ -31,17 +31,17 @@ def test_to_html(self):
         self.assertTrue(og.to_html())
 
     def test_to_json(self):
-        og = opengraph.OpenGraph(url='http://www.youtube.com/watch?v=XAyNT2bTFuI')
+        og = opengraph.OpenGraph(url='https://www.youtube.com/watch?v=XAyNT2bTFuI')
         self.assertTrue(og.to_json())
         self.assertTrue(isinstance(og.to_json(),str))
 
     def test_no_json(self):
         opengraph.import_json = False
-        og = opengraph.OpenGraph(url='http://grooveshark.com')
+        og = opengraph.OpenGraph(url='http://ogp.me')
         self.assertEqual(og.to_json(),"{'error':'there isn't json module'}")
         
     def test_is_valid(self):
-        og = opengraph.OpenGraph(url='http://grooveshark.com')
+        og = opengraph.OpenGraph(url='http://ogp.me')
         self.assertTrue(og.is_valid())