fix bug in the logger of decode_mail_header

2016-02-27 20:21:36 +08:00
parent 438f8ea4b8
commit 2dee895954
1 changed files with 1 additions and 1 deletions
--- a/imbox/parser.py
+++ b/imbox/parser.py
@@ -35,7 +35,7 @@ def decode_mail_header(value, default_charset='us-ascii'):
        return str_decode(str_encode(value, default_charset, 'replace'), default_charset)
    else:
        for index, (text, charset) in enumerate(headers):
-            logger.debug("Mail header no. {}: {} encoding {}".format(index, str_decode(text, 'utf-8'), charset))
+            logger.debug("Mail header no. {}: {} encoding {}".format(index, str_decode(text, charset or 'utf-8'), charset))
            try:
                headers[index] = str_decode(text, charset or default_charset,
                                            'replace')