--- a/script/utils/tweet_twitter_user.py	Fri Dec 21 12:33:01 2018 +0100
+++ b/script/utils/tweet_twitter_user.py	Wed Jan 02 17:49:19 2019 +0100
@@ -60,7 +60,7 @@
         sys.exit()
 
     conn_str = options.database.strip()
-    if not re.match("^\w+://.+", conn_str):
+    if not re.match(r"^\w+://.+", conn_str):
         conn_str = 'sqlite:///' + conn_str
 
     engine, metadata, Session = setup_database(conn_str, echo=((options.verbose-options.quiet)>0), create_all = False)