diff --git a/src/sugar3/bundle/activitybundle.py b/src/sugar3/bundle/activitybundle.py
index 879831e5..2b5e2f44 100644
--- a/src/sugar3/bundle/activitybundle.py
+++ b/src/sugar3/bundle/activitybundle.py
@@ -129,7 +129,7 @@ class ActivityBundle(Bundle):
 
     def _parse_info(self, info_file):
         cp = ConfigParser()
-        cp.readfp(info_file)
+        cp.read_string(info_file.read().decode())
 
         section = 'Activity'
 
@@ -251,7 +251,7 @@ class ActivityBundle(Bundle):
     def _parse_linfo(self, linfo_file):
         cp = ConfigParser()
         try:
-            cp.readfp(linfo_file)
+            cp.read_string(linfo_file.read().decode())
 
             section = 'Activity'
 
diff --git a/src/sugar3/bundle/bundle.py b/src/sugar3/bundle/bundle.py
index c5716107..206409a6 100644
--- a/src/sugar3/bundle/bundle.py
+++ b/src/sugar3/bundle/bundle.py
@@ -115,7 +115,7 @@ class Bundle(object):
         if self._zip_file is None:
             path = os.path.join(self._path, filename)
             try:
-                f = open(path, 'r')
+                f = open(path, 'rb')
             except IOError:
                 logging.debug("cannot open path %s" % path)
                 return None
@@ -123,7 +123,7 @@ class Bundle(object):
             path = os.path.join(self._zip_root_dir, filename)
             try:
                 data = self._zip_file.read(path)
-                f = six.StringIO(data)
+                f = six.BytesIO(data)
             except KeyError:
                 logging.debug('%s not found in zip %s.' % (filename, path))
                 return None