2to3 --fix=idioms
diff --git a/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py b/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
index 74013fa..4aeaf4b 100644
--- a/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
+++ b/Lib/fontTools/ttLib/tables/BitmapGlyphMetrics.py
@@ -40,7 +40,7 @@
def fromXML(self, name, attrs, content, ttFont):
metricNames = set(sstruct.getformat(self.__class__.binaryFormat)[1])
for element in content:
- if type(element) != TupleType:
+ if not isinstance(element, TupleType):
continue
name, attrs, content = element
# Make sure this is a metric that is needed by GlyphMetrics.