From 2a5e63f5bf0f362b2936b89ea686795d3827053d Mon Sep 17 00:00:00 2001
From: Tomáš Jusko
Date: Sun, 4 Dec 2022 20:55:39 +0100
Subject: fix: Changed default metadata value

---
 pyecsca/sca/stacked_traces/stacked_traces.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pyecsca/sca/stacked_traces/stacked_traces.py b/pyecsca/sca/stacked_traces/stacked_traces.py
index e55d48a..a9a3451 100644
--- a/pyecsca/sca/stacked_traces/stacked_traces.py
+++ b/pyecsca/sca/stacked_traces/stacked_traces.py
@@ -12,9 +12,10 @@ class StackedTraces:
     meta: Mapping[str, Any]
     samples: np.ndarray
 
+    # TODO: Split metadata into common and per-trace
     def __init__(
             self, samples: np.ndarray,
-            meta: Mapping[str, Any] = None) -> None:
+            meta: Mapping[str, Any] = dict()) -> None:
         if meta is None:
             meta = {}
         self.meta = meta
@@ -22,7 +23,7 @@ class StackedTraces:
 
     @classmethod
     def fromarray(cls, traces: Sequence[np.ndarray],
-                  meta: Mapping[str, Any] = None) -> 'StackedTraces':
+                  meta: Mapping[str, Any] = dict()) -> 'StackedTraces':
         ts = list(traces)
         min_samples = min(map(len, ts))
         for i, t in enumerate(ts):
-- 
cgit v1.3.1