py3: update all the things

Change-Id: I5e11b46b7c2f7f8760d6c0e713ca99c1e88b7cd3
diff --git a/tools/roomservice.py b/tools/roomservice.py
index 01a7154..ee8e5d8 100755
--- a/tools/roomservice.py
+++ b/tools/roomservice.py
@@ -38,7 +38,7 @@
 
 from xml.etree import ElementTree
 
-product = sys.argv[1];
+product = sys.argv[1]
 
 if len(sys.argv) > 2:
     depsonly = sys.argv[2]
@@ -59,7 +59,8 @@
     authtuple = netrc.netrc().authenticators("api.github.com")
 
     if authtuple:
-        githubauth = base64.encodestring('%s:%s' % (authtuple[0], authtuple[2])).replace('\n', '')
+        auth_string = ('%s:%s' % (authtuple[0], authtuple[2])).encode()
+        githubauth = base64.encodestring(auth_string).decode().replace('\n', '')
     else:
         githubauth = None
 except: