rows = [line.strip().split()[:-1] for line in inp.readlines() if len(line.strip().split())>3 and len(line.strip().split()[0].split('.'))==8] # a feature with length 8 will have an OTU id associated with it
classes = list(set([v[2] for v in rows if len(v)>2]))
if len(classes) < 1:
@@ -5258,7 +5266,7 @@ index f87e79e..e67153c 100755