fix import script to work remotely

grocery_transactions.sh

@@ -57,7 +57,16 @@ then
     usage 1>&2
     exit 1
 fi
-psql -d das <<EOF
+if [ -f db_credentials.py ]; then 
+    . db_credentials.py
+    HOST="-h ${HOST}"
+    PASSWORD=
+else
+    HOST=
+    PASSWORD=
+fi
+
+psql ${HOST} -d das <<EOF
 BEGIN;
 $(cat - )
 SELECT