diff -r 62877abb8ef0 webtranslate/users/redmine.py
--- a/webtranslate/users/redmine.py	Fri Dec 23 14:39:42 2016 +0100
+++ b/webtranslate/users/redmine.py	Mon Jan 08 19:08:25 2018 +0100
@@ -118,20 +118,21 @@
 
     @param parms: Parameters of the command.
     @type  parms: C{tuple} of C{str}
 
     @return: Cursor with the result, if all went well, else C{None}
     @rtype:  db cursor, or C{None}
     """
     global db_type, db_schema, db_name, db_password, db_user, db_host, db_port, db_connection
 
     if db_type == 'postgress':
+        import psycopg2
         cur = db_connection.cursor()
         try:
             cur.execute(cmd, parms)
             return cur
         except psycopg2.OperationalError:
             # Administrator closed the connection.
             db_connection = None
             return None
 
     else: