Python2.7 exposes header module as email.header
@@ -12,11 +12,7 @@ import email.utils
import re
from binascii import b2a_base64
from cgi import parse_header
-try:
- # Python 3
from email.header import decode_header
-except ImportError:
- from email.Header import decode_header
import six
from six.moves import range
