diff --git a/glances/exports/glances_mongodb.py b/glances/exports/glances_mongodb.py
index eabae605..427a4c97 100644
--- a/glances/exports/glances_mongodb.py
+++ b/glances/exports/glances_mongodb.py
@@ -12,7 +12,7 @@
 import sys
 
 from glances.logger import logger
-from glances.exports.glances_export import GlancesExport
+from glances.exports.export import GlancesExport
 
 import pymongo
 from urllib.parse import quote_plus
diff --git a/glances/globals.py b/glances/globals.py
index 6bdf140c..4b3e15b0 100644
--- a/glances/globals.py
+++ b/glances/globals.py
@@ -24,13 +24,14 @@ import types
 import subprocess
 from datetime import datetime
 import re
+import base64
 
 import queue
 from configparser import ConfigParser, NoOptionError, NoSectionError
 from statistics import mean
 from xmlrpc.client import Fault, ProtocolError, ServerProxy, Transport, Server
 from xmlrpc.server import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
-from urllib.request import urlopen, Request, base64
+from urllib.request import urlopen, Request
 from urllib.error import HTTPError, URLError
 from urllib.parse import urlparse
 
diff --git a/glances/password.py b/glances/password.py
index 181cfb4d..782e6102 100644
--- a/glances/password.py
+++ b/glances/password.py
@@ -44,7 +44,7 @@ class GlancesPassword(object):
 
     def get_hash(self, plain_password, salt=''):
         """Return the hashed password, salt + pbkdf2_hmac."""
-        return to_hex(hashlib.pbkdf2_hmac('sha256', plain_password.encode(), salt.encode(), 100000, dklen=128))
+        return hashlib.pbkdf2_hmac('sha256', plain_password.encode(), salt.encode(), 100000, dklen=128).hex()
 
     def hash_password(self, plain_password):
         """Hash password with a salt based on UUID (universally unique identifier)."""