Convert connections attribute to list

docs/examples/edit_rosbags_edit_timestamps.py

@@ -23,7 +23,7 @@ def offset_timestamps(src: Path, dst: Path, offset: int) -> None:
     """
     with Reader(src) as reader, Writer(dst) as writer:
         conn_map = {}
-        for conn in reader.connections.values():
+        for conn in reader.connections:
             ext = cast(ConnectionExtRosbag2, conn.ext)
             conn_map[conn.id] = writer.add_connection(
                 conn.topic,

docs/examples/edit_rosbags_remove_topic.py

@@ -22,7 +22,7 @@ def remove_topic(src: Path, dst: Path, topic: str) -> None:
     """
     with Reader(src) as reader, Writer(dst) as writer:
         conn_map = {}
-        for conn in reader.connections.values():
+        for conn in reader.connections:
             if conn.topic == topic:
                 continue
             ext = cast(ConnectionExtRosbag2, conn.ext)

docs/examples/register_types_rosbag1.py

@@ -20,7 +20,7 @@ def process_bag(src: Path) -> None:
     """
     with Reader(src) as reader:
         typs = {}
-        for conn in reader.connections.values():
+        for conn in reader.connections:
             typs.update(get_types_from_msg(conn.msgdef, conn.msgtype))
         register_types(typs)
 

docs/topics/rosbag1.rst

@@ -37,8 +37,8 @@ Instances of the :py:class:`Reader <rosbags.rosbag2.Reader>` class are typically
 
    # create reader instance
    with Reader('/home/ros/rosbag_2020_03_24.bag') as reader:
-       # topic and msgtype information is available on .connections dictionary
-       for connection in reader.connections.values():
+       # topic and msgtype information is available on .connections list
+       for connection in reader.connections:
            print(connection.topic, connection.msgtype)
 
        # iterate over messages
@@ -48,7 +48,7 @@ Instances of the :py:class:`Reader <rosbags.rosbag2.Reader>` class are typically
                print(msg.header.frame_id)
 
        # messages() accepts connection filters
-       connections = [x for x in reader.connections.values() if x.topic == '/imu_raw/Imu']
+       connections = [x for x in reader.connections if x.topic == '/imu_raw/Imu']
        for connection, timestamp, rawdata in reader.messages(connections=connections):
            msg = deserialize_cdr(ros1_to_cdr(rawdata, connection.msgtype), connection.msgtype)
            print(msg.header.frame_id)

docs/topics/rosbag2.rst

@@ -52,8 +52,8 @@ Instances of the :py:class:`Reader <rosbags.rosbag2.Reader>` class are used to r
 
    # create reader instance and open for reading
    with Reader('/home/ros/rosbag_2020_03_24') as reader:
-       # topic and msgtype information is available on .connections dict
-       for connection in reader.connections.values():
+       # topic and msgtype information is available on .connections list
+       for connection in reader.connections:
            print(connection.topic, connection.msgtype)
 
        # iterate over messages
@@ -63,7 +63,7 @@ Instances of the :py:class:`Reader <rosbags.rosbag2.Reader>` class are used to r
                print(msg.header.frame_id)
 
        # messages() accepts connection filters
-       connections = [x for x in reader.connections.values() if x.topic == '/imu_raw/Imu']
+       connections = [x for x in reader.connections if x.topic == '/imu_raw/Imu']
        for connection, timestamp, rawdata in reader.messages(connections=connections):
            msg = deserialize_cdr(rawdata, connection.msgtype)
            print(msg.header.frame_id)