add except

Author: Runsheng

phred_per_read.py

@@ -39,7 +39,7 @@ def phred_to_number(fastqfile):
             try:
                 score_one.append(phred[i])
             except KeyError as e:
-                logging.warnings("score char not in sanger 0-45 range", e)
+                logging.warn("score char not in sanger 0-45 range", e)
 
         score_one_mean=mean(score_one)
         #  Note the last word in qyalityscore is "\n"