lib: make packets and packet messages optional, disabled by default

[babeltrace.git] / src / bindings / python / bt2 / bt2 / stream.py

diff --git a/src/bindings/python/bt2/bt2/stream.py b/src/bindings/python/bt2/bt2/stream.py
index 5accfcd0751cfdf271121587b1b6b0d8c73a1ab1..eb780b0ee6ab02c9d0c78ff6502f0037a9593597 100644 (file)
--- a/src/bindings/python/bt2/bt2/stream.py
+++ b/src/bindings/python/bt2/bt2/stream.py
@@ -52,6 +52,9 @@ class _Stream(bt2.object._SharedObject):
         return id if id >= 0 else None
 
     def create_packet(self):
+        if not self.cls.supports_packets:
+            raise bt2.Error('cannot create packet: stream class does not support packets')
+
         packet_ptr = native_bt.packet_create(self._ptr)
 
         if packet_ptr is None: