diff --git a/seanim.py b/seanim.py
index 05bf81e..c53ab53 100644
--- a/seanim.py
+++ b/seanim.py
@@ -258,7 +258,7 @@ class Bone(object):
             data = struct.unpack('%c' % frame_t.char, bytes)
             self.locKeyCount = data[0]
 
-            for i in range(self.locKeyCount):
+            for _ in range(self.locKeyCount):
                 bytes = file.read(frame_t.size + 3 * precision_t.size)
                 data = struct.unpack('=%c3%c' %
                                      (frame_t.char, precision_t.char), bytes)
@@ -274,7 +274,7 @@ class Bone(object):
             data = struct.unpack('%c' % frame_t.char, bytes)
             self.rotKeyCount = data[0]
 
-            for i in range(self.rotKeyCount):
+            for _ in range(self.rotKeyCount):
 
                 bytes = file.read(frame_t.size + 4 * precision_t.size)
                 data = struct.unpack('=%c4%c' %
@@ -291,7 +291,7 @@ class Bone(object):
             bytes = file.read(frame_t.size)
             data = struct.unpack('%c' % frame_t.char, bytes)
             self.scaleKeyCount = data[0]
-            for i in range(self.scaleKeyCount):
+            for _ in range(self.scaleKeyCount):
                 bytes = file.read(frame_t.size + 3 * precision_t.size)
                 data = struct.unpack('=%c3%c' %
                                      (frame_t.char, precision_t.char), bytes)