Python message with uint32 Assertion `PyLong_Check(field)' failed

[wangchong666]

Bug report

Required Info:

• Operating System:

  • centos 7

• Installation type:

  • docker image ros:rolling

• Version or commit hash:

  • image ID 1186d494b6a3

• Client library (if applicable):

  • rclpy

Steps to reproduce issue

RadarMessage.msg

uint32  radar_id
float32 sx
float32 sh
float32 bx
float32 bh
float32 warming_distance
float32 daoxian_height
float32 danger_height

Node publisher_member_function.py

import rclpy
from rclpy.node import Node

from std_msgs.msg import String
from twvs_inf.msg import RadarMessage                            # CHANGE

class MinimalPublisher(Node):

    def __init__(self):
        super().__init__('minimal_publisher')
        self.publisher_ = self.create_publisher(RadarMessage, 'topic', 10)
        timer_period = 0.5  # seconds
        self.timer = self.create_timer(timer_period, self.timer_callback)
        self.i = 0

    def timer_callback(self):
        msg = RadarMessage()
        msg.sx = 1.0
        msg.sh = 1.0
        msg.bx = 1.0
        msg.bh = 1.0
        msg.warming_distance = 1.0
        msg.daoxian_height = 1.0
        msg.danger_height = 2.0 
        msg.radar_id = 1,
        # print(self.radar_settings["radarId"])
        print(msg.radar_id)
        # print(msg.radar_id)
        self.publisher_.publish(msg)
        self.i += 1

def main(args=None):
    rclpy.init(args=args)

    minimal_publisher = MinimalPublisher()

    rclpy.spin(minimal_publisher)

    # Destroy the node explicitly
    # (optional - otherwise it will be done automatically
    # when the garbage collector destroys the node object)
    minimal_publisher.destroy_node()
    rclpy.shutdown()

if __name__ == '__main__':
    main()

Expected behavior

twvs_inf.msg.RadarMessage(radar_id=1, sx=1.0, sh=1.0, bx=1.0, bh=1.0, warming_distance=1.0, daoxian_height=1.0, danger_height=2.0)
twvs_inf.msg.RadarMessage(radar_id=1, sx=1.0, sh=1.0, bx=1.0, bh=1.0, warming_distance=1.0, daoxian_height=1.0, danger_height=2.0)
twvs_inf.msg.RadarMessage(radar_id=1, sx=1.0, sh=1.0, bx=1.0, bh=1.0, warming_distance=1.0, daoxian_height=1.0, danger_height=2.0)

Actual behavior

(1,)
python3: /home/ros/build/twvs_inf/rosidl_generator_py/twvs_inf/msg/_radar_message_s.c:58: twvs_inf__msg__radar_message__convert_from_py: Assertion `PyLong_Check(field)' failed.
[ros2run]: Aborted

Additional information

---- radar_id became (1,)

Feature request

Feature description

Implementation considerations

[wangchong666]

this work well, very strange

import rclpy
from rclpy.node import Node

from std_msgs.msg import String
from twvs_inf.msg import RadarMessage                            # CHANGE

class MinimalPublisher(Node):

    def __init__(self):
        super().__init__('minimal_publisher')
        self.publisher_ = self.create_publisher(RadarMessage, 'topic', 10)
        timer_period = 0.5  # seconds
        self.timer = self.create_timer(timer_period, self.timer_callback)
        self.i = 0

    def timer_callback(self):
        msg = RadarMessage()
        msg.radar_id = 1
        msg.sx = 1.0
        msg.sh = 1.0
        msg.bx = 1.0
        msg.bh = 1.0
        msg.warming_distance = 1.0
        msg.daoxian_height = 1.0
        msg.danger_height = 2.0         
        print(msg)
        self.publisher_.publish(msg)
        self.i += 1

def main(args=None):
    rclpy.init(args=args)

    minimal_publisher = MinimalPublisher()

    rclpy.spin(minimal_publisher)

    # Destroy the node explicitly
    # (optional - otherwise it will be done automatically
    # when the garbage collector destroys the node object)
    minimal_publisher.destroy_node()
    rclpy.shutdown()

if __name__ == '__main__':
    main()

[wangchong666]

Finally, there was an extra comma

msg.radar_id = 1,