Fix search view tests for Python 3

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/tests/test_search.py

@@ -217,7 +217,10 @@ class SearchViewTest(ViewTestCase):
             'Substring search for'
         )
         # Extract search ID
-        search_id = re.findall(r'sid=([0-9a-f-]*)&amp', response.content)[0]
+        search_id = re.findall(
+            r'sid=([0-9a-f-]*)&amp',
+            response.content.decode('utf-8')
+        )[0]
         # Try access to pages
         response = self.client.get(
             self.translate_url,
@@ -285,7 +288,10 @@ class SearchViewTest(ViewTestCase):
             'Substring search for',
             url=translation.get_translate_url()
         )
-        search_id = re.findall(r'sid=([0-9a-f-]*)&amp', response.content)[0]
+        search_id = re.findall(
+            r'sid=([0-9a-f-]*)&amp',
+            response.content.decode('utf-8')
+        )[0]
         response = self.client.get(
             self.translate_url,
             {'sid': search_id, 'offset': 0}
@@ -304,7 +310,10 @@ class SearchViewTest(ViewTestCase):
             '3 / 4'
         )
         # Extract search ID
-        search_id = re.findall(r'sid=([0-9a-f-]*)&amp', response.content)[0]
+        search_id = re.findall(
+            r'sid=([0-9a-f-]*)&amp',
+            response.content.decode('utf-8')
+        )[0]
         # Navigation
         response = self.do_search(
             {'sid': search_id, 'offset': 0},