diff --git a/lib/entropy/misc.py b/lib/entropy/misc.py
index bb4a94af8..d216bd693 100644
--- a/lib/entropy/misc.py
+++ b/lib/entropy/misc.py
@@ -35,7 +35,8 @@ import threading
 from collections import deque
 
 from entropy.const import etpConst, const_isunicode, \
-    const_isfileobj, const_convert_log_level, const_setup_file
+    const_isfileobj, const_convert_log_level, const_setup_file, \
+    const_convert_to_unicode
 from entropy.exceptions import EntropyException
 
 import entropy.tools
@@ -1665,6 +1666,24 @@ class FastRSS(object):
         const_setup_file(self.__file, etpConst['entropygid'], 0o664)
 
 
+class FileobjCompatBuffer:
+
+    """
+    Compatibility shim for file object with the buffer attribute.
+    To be used with classes whose write method expect strings.
+    """
+
+    def __init__(self, parent):
+        self._parent = parent
+
+    def write(self, msg):
+        msg_str = const_convert_to_unicode(msg)
+        self._parent.write(msg_str)
+
+    def flush(self):
+        self._parent.flush()
+
+
 class LogFile:
 
     """ Entropy simple logging interface, works as file object """
@@ -1715,6 +1734,9 @@ class LogFile:
             LogFile.DATE_FORMAT))
         self.__logger.addHandler(self.__handler)
 
+        if const_is_python3():
+            self.buffer = FileobjCompatBuffer(self)
+
     def __enter__(self):
         """
         Just return self, configuration is done in __init__
diff --git a/rigo/RigoDaemon/app/RigoDaemon_app.py b/rigo/RigoDaemon/app/RigoDaemon_app.py
index 39c4aeefe..33b45e5b8 100755
--- a/rigo/RigoDaemon/app/RigoDaemon_app.py
+++ b/rigo/RigoDaemon/app/RigoDaemon_app.py
@@ -79,7 +79,7 @@ from entropy.exceptions import DependenciesNotFound, \
     EntropyPackageException, InterruptError, RepositoryError
 from entropy.i18n import _
 from entropy.misc import LogFile, ParallelTask, TimeScheduled, \
-    ReadersWritersSemaphore
+    ReadersWritersSemaphore, FileobjCompatBuffer
 from entropy.fetchers import UrlFetcher, MultipleUrlFetcher
 from entropy.output import TextInterface, purple, teal
 from entropy.client.interfaces import Client
@@ -340,6 +340,10 @@ class FakeOutFile(object):
         self._app_mgmt_mutex = app_mgmt_mutex
         self._app_mgmt_notes = app_mgmt_notes
         self._rfd, self._wfd = os.pipe()
+
+        if const_is_python3():
+            self.buffer = FileobjCompatBuffer(self)
+
         task = ParallelTask(self._pusher)
         task.name = "FakeOutFilePusher"
         task.daemon = True