From de3c44e806114a6d4e7e6be7c52793557404cf49 Mon Sep 17 00:00:00 2001
From: J08nY
Date: Wed, 11 Oct 2023 18:22:53 +0200
Subject: Add default group in HDF5.

---
 pyecsca/sca/trace_set/hdf5.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pyecsca/sca/trace_set/hdf5.py b/pyecsca/sca/trace_set/hdf5.py
index caaba0b..0f1b73d 100644
--- a/pyecsca/sca/trace_set/hdf5.py
+++ b/pyecsca/sca/trace_set/hdf5.py
@@ -84,6 +84,8 @@ class HDF5TraceSet(TraceSet):
             hdf5 = h5py.File(input, mode="r")
         else:
             raise TypeError
+        if "traces" not in hdf5:
+            hdf5.create_group("traces", track_order=True)
         group = hdf5["traces"]
         kwargs = dict(group.attrs)
         ordering = []
@@ -103,6 +105,8 @@ class HDF5TraceSet(TraceSet):
             hdf5 = h5py.File(input, mode="a")
         else:
             raise TypeError
+        if "traces" not in hdf5:
+            hdf5.create_group("traces", track_order=True)
         group = hdf5["traces"]
         kwargs = dict(group.attrs)
         ordering = []
-- 
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