--- a/blast2html.py	Thu Jul 31 17:24:10 2014 +0200
+++ b/blast2html.py	Thu Jul 31 18:40:28 2014 +0200
@@ -329,9 +329,10 @@
             hsps = hit.Hit_hsps.Hsp
 
             # In python 2.6 array doesn't accept unicode type codes, but in 3.4 it requires them
-            cover = array(str('B'), [0]) * query_length
+            typecode_B = builtin_str('B')
+            cover = array(typecode_B, [0]) * query_length
             for hsp in hsps:
-                cover[hsp['Hsp_query-from']-1 : int(hsp['Hsp_query-to'])] = array(str('B'), [1]) * blastxml_len(hsp)
+                cover[hsp['Hsp_query-from']-1 : int(hsp['Hsp_query-to'])] = array(typecode_B, [1]) * blastxml_len(hsp)
             cover_count = cover.count(1)
 
             best_hsp = max(hsps, key=lambda h: h['Hsp_bit-score'])