launch_ros.substitutions.parameter module
Module for the Parameter substitution.
- class launch_ros.substitutions.parameter.Parameter(*args: Any, **kwargs: Any)
Bases:
Substitution
Substitution that tries to get a parameter that was set by SetParameter.
- Raise:
SubstitutionFailure when param is not found
- describe() str
Return a description of this substitution as a string.
- property name: List[launch.substitution.Substitution]
Getter for name.
- classmethod parse(data: Sequence[launch.some_substitutions_type.SomeSubstitutionsType])
Parse a Parameter substitution.
- perform(context: launch.launch_context.LaunchContext) str
Perform the substitution.
- launch_ros.substitutions.parameter.expose_substitution(_)