Open FTP session on the last moment possible

Used to open  fp = open(file_path,'wb') a few lines before it was needed. This shouldn't be too much of a problem but opening and closing it right after eachother keeps the session open for less time and there are less chances on failure.

auto_backup/backup_scheduler.py

@@ -152,7 +152,6 @@ password=passwordLogin,port=portHost)
                 #Create name for dumpfile.
                 bkp_file='%s_%s.dump' % (time.strftime('%d_%m_%Y_%H_%M_%S'),rec.name)
                 file_path = os.path.join(rec.bkp_dir,bkp_file)
-                fp = open(file_path,'wb')
                 uri = 'http://' + rec.host + ':' + rec.port
                 conn = xmlrpclib.ServerProxy(uri + '/xmlrpc/db')
                 bkp=''
@@ -162,6 +161,7 @@ password=passwordLogin,port=portHost)
                     logger.notifyChannel('backup', netsvc.LOG_INFO, "Could'nt backup database %s. Bad database administrator password for server running at http://%s:%s" %(rec.name, rec.host, rec.port))
                     continue
                 bkp = base64.decodestring(bkp)
+                fp = open(file_path,'wb')
                 fp.write(bkp)
                 fp.close()
             else: