finish conversion to python 3

hbd

@@ -26,6 +26,7 @@ import queue
 from hashlib import md5
 import json
 import zlib
+import codecs
 
 from subprocess import Popen, STDOUT, PIPE
 
@@ -501,10 +502,11 @@ def updatecode(ucode, uname):
 	except Exception as e:
 		fail = "cannot read new code: %s" % e
 	if not fail:
-		m = md5.new()
-		m.update(new_code)
+		m = md5()
+		new_codeE = new_code.encode()
+		m.update(new_codeE)
 		icsum = m.hexdigest()
-		rmsg = {'csum': icsum, 'code': new_code.encode('base64','strict') }
+		rmsg = {'csum': icsum, 'code': codecs.encode(new_codeE, 'base64') }
 		hbdclass.Host.hosts[uname].cmds.append(('UPD',rmsg))
 	return fail