Fix: babeltrace: writer.py: do not use += on bt2.trace._TraceEnv

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>

diff --git a/bindings/python/babeltrace/babeltrace/writer.py b/bindings/python/babeltrace/babeltrace/writer.py
index 61d28a5161cf1729ff729e68c0fe9f4c66c48836..d5f282e630c76b20ede7c9adee3225bdeacb712a 100644 (file)
--- a/bindings/python/babeltrace/babeltrace/writer.py
+++ b/bindings/python/babeltrace/babeltrace/writer.py
@@ -1954,7 +1954,7 @@ class Writer:
             raise TypeError("Value type is not supported.")
 
         try:
-            self._w.trace.env += {name: value}
+            self._w.trace.env[name] = value
         except:
             raise ValueError("Could not add environment field to trace.")