bt2: remove unused imports

[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 70011758cefaa01b0b2e4bd44e610de676cae606..4710aeaaa0cb51e215279694d25588f3d3491c82 100644 (file)
--- a/src/bindings/python/bt2/bt2/stream.py
+++ b/src/bindings/python/bt2/bt2/stream.py
@@ -21,12 +21,14 @@
 # THE SOFTWARE.
 
 from bt2 import native_bt, utils
-import bt2.packet
-import bt2.event
+from bt2 import object as bt2_object
+from bt2 import packet as bt2_packet
+from bt2 import trace as bt2_trace
+from bt2 import stream_class as bt2_stream_class
 import bt2
 
 
-class _Stream(bt2.object._SharedObject):
+class _Stream(bt2_object._SharedObject):
     _get_ref = staticmethod(native_bt.stream_get_ref)
     _put_ref = staticmethod(native_bt.stream_put_ref)
 
@@ -34,7 +36,7 @@ class _Stream(bt2.object._SharedObject):
     def cls(self):
         stream_class_ptr = native_bt.stream_borrow_class(self._ptr)
         assert stream_class_ptr is not None
-        return bt2.stream_class._StreamClass._create_from_ptr_and_get_ref(
+        return bt2_stream_class._StreamClass._create_from_ptr_and_get_ref(
             stream_class_ptr
         )
 
@@ -62,6 +64,12 @@ class _Stream(bt2.object._SharedObject):
         packet_ptr = native_bt.packet_create(self._ptr)
 
         if packet_ptr is None:
-            raise bt2.CreationError('cannot create packet object')
+            raise bt2._MemoryError('cannot create packet object')
 
-        return bt2.packet._Packet._create_from_ptr(packet_ptr)
+        return bt2_packet._Packet._create_from_ptr(packet_ptr)
+
+    @property
+    def trace(self):
+        trace_ptr = native_bt.stream_borrow_trace(self._ptr)
+        assert trace_ptr is not None
+        return bt2_trace._Trace._create_from_ptr_and_get_ref(trace_ptr)