replacement of configuration variable acquisition

views/loginlogout.py

@@ -15,18 +15,18 @@ bcrypt = Bcrypt(app)
 #### Variables ####################################################################################
 
 bcrypt = Bcrypt(app)
-DATAS_USER = app.config['DOSSIER_APP']
+DATAS_USER = app.config.get('DOSSIER_APP')
 
-extensionimg = app.config['EXT_IMG']
+extensionimg = app.config.get('EXT_IMG')
 
-DATABASE = app.config['DATABASE']
-BASE_URL = app.config['BASE_URL']
-SETUID = app.config['SETUID']
-MAIL_SERVER = app.config['MAIL_SERVER']
-XMPP_SERVER = app.config['XMPP_SERVER']
-BACKUP_TIME = app.config['BACKUP_TIME']
-SERVER_TITLE = app.config['TITLE_SERVER']
-SERVER_DESC = app.config['DESC_SERVER']
+DATABASE = app.config.get('DATABASE')
+BASE_URL = app.config.get('BASE_URL')
+SETUID = app.config.get('SETUID')
+MAIL_SERVER = app.config.get('MAIL_SERVER')
+XMPP_SERVER = app.config.get('XMPP_SERVER')
+BACKUP_TIME = app.config.get('BACKUP_TIME')
+SERVER_TITLE = app.config.get('TITLE_SERVER')
+SERVER_DESC = app.config.get('DESC_SERVER')
 ##################################################################################################