From ddc652688261bae74e98509135faca91a0abd750 Mon Sep 17 00:00:00 2001
From: "Edgar P. Burkhart" <git@edgarpierre.fr>
Date: Fri, 4 Mar 2022 10:22:38 +0100
Subject: [PATCH] Fixed read_swash class

---
 swash/processing/read_swash.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/swash/processing/read_swash.py b/swash/processing/read_swash.py
index 9287e30..aa43c4b 100644
--- a/swash/processing/read_swash.py
+++ b/swash/processing/read_swash.py
@@ -7,7 +7,7 @@ class ReadSwash:
         self._n_t = None
         self._t = None
         self._x = None
-        self._data = None
+        self._data = {}
 
     @classmethod
     def read_nohead(cls, path):