[ros2lifecycle] get --transitions raises AttributeError

[sloretz]

Bug report

Required Info:

• Operating System:
  • ubuntu bionic
• Installation type:
  • debs
• Version or commit hash:
  • crystal pre-release
• DDS implementation:
  • Fast-RTPS
• Client library (if applicable):
  • rclpy

Steps to reproduce issue

1. Start a lifecycle node

   ros2 run lifecycle lifecycle_talker
   

2. List available transitions for the node

   ros2 lifecycle get --transitions  /lc_talker
   

Expected behavior

I expect to see a list of transitions the node could go through.

Actual behavior

$ ros2 lifecycle get --transitions  /lc_talker
unconfigured [1]
Traceback (most recent call last):
  File "/opt/ros/crystal/bin/ros2", line 11, in <module>
    load_entry_point('ros2cli==0.6.1', 'console_scripts', 'ros2')()
  File "/opt/ros/crystal/lib/python3.6/site-packages/ros2cli/cli.py", line 69, in main
    rc = extension.main(parser=parser, args=args)
  File "/opt/ros/crystal/lib/python3.6/site-packages/ros2lifecycle/command/lifecycle.py", line 40, in main
    return extension.main(args=args)
  File "/opt/ros/crystal/lib/python3.6/site-packages/ros2lifecycle/verb/get.py", line 93, in main
    .format_map(locals()))
AttributeError: 'TransitionDescription' object has no attribute 'label'

Additional information

[Karsten1987]

I feel like this option should be disabled.

in order to only currently available transitions:

ros2 lifecycle list /lc_talker

In order to see all available transitions:

ros2 lifecycle list -a /lc_talker

Does this make sense?