1 files changed, 4 insertions, 5 deletions
diff --git a/kombu/asynchronous/debug.py b/kombu/asynchronous/debug.py
index 0e5ffbe0..002c8ec9 100644
--- a/kombu/asynchronous/debug.py
+++ b/kombu/asynchronous/debug.py
@@ -1,5 +1,4 @@
 """Event-loop debugging tools."""
-from __future__ import absolute_import, unicode_literals
 
 from kombu.five import items, string_t
 from kombu.utils.eventio import READ, WRITE, ERR
@@ -8,7 +7,7 @@ from kombu.utils.functional import reprcall
 
 def repr_flag(flag):
     """Return description of event loop flag."""
-    return '{0}{1}{2}'.format('R' if flag & READ else '',
+    return '{}{}{}'.format('R' if flag & READ else '',
                               'W' if flag & WRITE else '',
                               '!' if flag & ERR else '')
 
@@ -32,7 +31,7 @@ def repr_active(h):
 def repr_events(h, events):
     """Return description of events returned by poll."""
     return ', '.join(
-        '{0}({1})->{2}'.format(
+        '{}({})->{}'.format(
             _rcb(callback_for(h, fd, fl, '(GONE)')), fd,
             repr_flag(fl),
         )
@@ -42,13 +41,13 @@ def repr_events(h, events):
 
 def repr_readers(h):
     """Return description of pending readers."""
-    return ['({0}){1}->{2}'.format(fd, _rcb(cb), repr_flag(READ | ERR))
+    return ['({}){}->{}'.format(fd, _rcb(cb), repr_flag(READ | ERR))
             for fd, cb in items(h.readers)]
 
 
 def repr_writers(h):
     """Return description of pending writers."""
-    return ['({0}){1}->{2}'.format(fd, _rcb(cb), repr_flag(WRITE))
+    return ['({}){}->{}'.format(fd, _rcb(cb), repr_flag(WRITE))
             for fd, cb in items(h.writers)]