X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=src%2Fbindings%2Fpython%2Fbt2%2Fbt2%2Fport.py;h=4206b3f0910694556372c3e9b6f23e54c122e60b;hp=418f215b8952162cc6cc98bda6aedc3aa6f33f60;hb=0235b0db7de5bcacdb3650c92461f2ce5eb2143d;hpb=6c373cc905e907ecbad698fee38db1d47a981b14

diff --git a/src/bindings/python/bt2/bt2/port.py b/src/bindings/python/bt2/bt2/port.py
index 418f215b..4206b3f0 100644
--- a/src/bindings/python/bt2/bt2/port.py
+++ b/src/bindings/python/bt2/bt2/port.py
@@ -1,33 +1,17 @@
-# The MIT License (MIT)
+# SPDX-License-Identifier: MIT
 #
 # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
 
 from bt2 import native_bt, object
-from bt2 import component as bt2_component
-from bt2 import connection as bt2_connection
-from bt2 import message as bt2_message
-import bt2
 
 
-def _create_from_ptr_and_get_ref(ptr, port_type):
+def _bt2_connection():
+    from bt2 import connection as bt2_connection
+
+    return bt2_connection
+
+
+def _create_from_const_ptr_and_get_ref(ptr, port_type):
     cls = _PORT_TYPE_TO_PYCLS.get(port_type, None)
 
     if cls is None:
@@ -45,7 +29,7 @@ def _create_self_from_ptr_and_get_ref(ptr, port_type):
     return cls._create_from_ptr_and_get_ref(ptr)
 
 
-class _Port(object._SharedObject):
+class _PortConst(object._SharedObject):
     @classmethod
     def _get_ref(cls, ptr):
         ptr = cls._as_port_ptr(ptr)
@@ -71,22 +55,22 @@ class _Port(object._SharedObject):
         if conn_ptr is None:
             return
 
-        return bt2_connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
+        return _bt2_connection()._ConnectionConst._create_from_ptr_and_get_ref(conn_ptr)
 
     @property
     def is_connected(self):
         return self.connection is not None
 
 
-class _InputPort(_Port):
+class _InputPortConst(_PortConst):
     _as_port_ptr = staticmethod(native_bt.port_input_as_port_const)
 
 
-class _OutputPort(_Port):
+class _OutputPortConst(_PortConst):
     _as_port_ptr = staticmethod(native_bt.port_output_as_port_const)
 
 
-class _UserComponentPort(_Port):
+class _UserComponentPort(_PortConst):
     @classmethod
     def _as_port_ptr(cls, ptr):
         ptr = cls._as_self_port_ptr(ptr)
@@ -100,7 +84,7 @@ class _UserComponentPort(_Port):
         if conn_ptr is None:
             return
 
-        return bt2_connection._Connection._create_from_ptr_and_get_ref(conn_ptr)
+        return _bt2_connection()._ConnectionConst._create_from_ptr_and_get_ref(conn_ptr)
 
     @property
     def user_data(self):
@@ -108,21 +92,21 @@ class _UserComponentPort(_Port):
         return native_bt.self_component_port_get_data(ptr)
 
 
-class _UserComponentInputPort(_UserComponentPort, _InputPort):
+class _UserComponentInputPort(_UserComponentPort, _InputPortConst):
     _as_self_port_ptr = staticmethod(
         native_bt.self_component_port_input_as_self_component_port
     )
 
 
-class _UserComponentOutputPort(_UserComponentPort, _OutputPort):
+class _UserComponentOutputPort(_UserComponentPort, _OutputPortConst):
     _as_self_port_ptr = staticmethod(
         native_bt.self_component_port_output_as_self_component_port
     )
 
 
 _PORT_TYPE_TO_PYCLS = {
-    native_bt.PORT_TYPE_INPUT: _InputPort,
-    native_bt.PORT_TYPE_OUTPUT: _OutputPort,
+    native_bt.PORT_TYPE_INPUT: _InputPortConst,
+    native_bt.PORT_TYPE_OUTPUT: _OutputPortConst,
 }