Removed seq from Header, as it is no longer supported in ROS2

Author: iliabaranov

AUTHORS.rst

@@ -10,3 +10,4 @@ Authors
 * Hiroyuki Obinata `@obi-t4 <https://github.com/obi-t4>`_
 * Pedro Pereira `@MisterOwlPT <https://github.com/MisterOwlPT>`_
 * Domenic Rodriguez `@DomenicP <https://github.com/DomenicP>`_
+* Ilia Baranov `@iliabaranov <https://github.com/iliabaranov>`_

src/roslibpy/core.py

@@ -50,9 +50,8 @@ def __init__(self, values=None):
 class Header(UserDict):
     """Represents a message header of the ROS type std_msgs/Header."""
 
-    def __init__(self, seq=None, stamp=None, frame_id=None):
+    def __init__(self, stamp=None, frame_id=None):
         self.data = {}
-        self.data["seq"] = seq
         self.data["stamp"] = Time(stamp["secs"], stamp["nsecs"]) if stamp else None
         self.data["frame_id"] = frame_id
 

tests/test_core.py

@@ -27,14 +27,14 @@ def test_is_zero():
 
 
 def test_header_ctor_supports_time():
-    header = Header(seq=1, stamp=Time.from_sec(REF_FLOAT_SECS_TIME))
+    header = Header(stamp=Time.from_sec(REF_FLOAT_SECS_TIME))
     assert header["stamp"]["secs"] == 1610122759
     assert header["stamp"]["secs"] == header["stamp"].secs
     assert header["stamp"].to_sec() == REF_FLOAT_SECS_TIME
 
 
 def test_header_ctor_supports_dict():
-    header = Header(seq=1, stamp=dict(secs=1610122759, nsecs=677661895))
+    header = Header(stamp=dict(secs=1610122759, nsecs=677661895))
     assert header["stamp"]["secs"] == 1610122759
     assert header["stamp"]["secs"] == header["stamp"].secs
     assert header["stamp"].to_sec() == REF_FLOAT_SECS_TIME

tests/test_topic.py

@@ -69,7 +69,7 @@ def receive_message(message):
 
     def start_sending():
         for i in range(3):
-            msg = dict(header=Header(seq=i, stamp=Time.now(), frame_id="base"), point=dict(x=0.0, y=1.0, z=2.0))
+            msg = dict(header=Header(stamp=Time.now(), frame_id="base"), point=dict(x=0.0, y=1.0, z=2.0))
             publisher.publish(Message(msg))
             time.sleep(0.1)