py23 from __future__ import division and adjust divisions
diff --git a/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py b/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
index 7368ba1..620d3a1 100644
--- a/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
+++ b/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
@@ -1,6 +1,6 @@
# Since bitmap glyph metrics are shared between EBLC and EBDT
# this class gets its own python file.
-from __future__ import print_function
+from __future__ import print_function, division
from fontTools.misc.py23 import *
from fontTools.misc import sstruct
from fontTools.misc.textTools import safeEval