[introspector] failing when env is set by the user #203
Description
Bug report
Required Info:
- Operating System:
- Ubuntu 18.04
- Installation type:
- binaries
- Version or commit hash:
- crystal
- DDS implementation:
- default
- Client library (if applicable):
- n/a
Steps to reproduce issue
Add an env dict to the arguments for a node action and also call the introspector.
launch_description = launch.LaunchDescription()
launch_description.add_action(
launch_ros.actions.Node(
package='py_trees_ros_tutorials',
node_name="one",
node_executable="tree-data-gathering",
output='screen',
env={'PYTHONUNBUFFERED': '1'}
)
)
print(launch.LaunchIntrospector().format_launch_description(launch_description))
Expected behavior
No errors.
Actual behavior
Traceback (most recent call last):
File "/mnt/mervin/workspaces/crystal/py_trees/install/py_trees_ros_tutorials/lib/py_trees_ros_tutorials/tutorial-one-data-gathering", line 11, in <module>
load_entry_point('py-trees-ros-tutorials', 'console_scripts', 'tutorial-one-data-gathering')()
File "/mnt/mervin/workspaces/crystal/py_trees/build/py_trees_ros_tutorials/py_trees_ros_tutorials/one_data_gathering.py", line 123, in launch_main
print(launch.LaunchIntrospector().format_launch_description(launch_description))
File "/opt/ros/crystal/lib/python3.6/site-packages/launch/launch_introspector.py", line 134, in format_launch_description
entity_descriptions = format_entities(launch_description.entities)
File "/opt/ros/crystal/lib/python3.6/site-packages/launch/launch_introspector.py", line 74, in format_entities
result.extend(format_action(cast(Action, entity)))
File "/opt/ros/crystal/lib/python3.6/site-packages/launch/launch_introspector.py", line 114, in format_action
for k, v in typed_action.env.items()]) + '}',
AttributeError: 'list' object has no attribute 'items'