launch.substitutions.equals_substitution module

Module for the EqualsSubstitution substitution.

class launch.substitutions.equals_substitution.EqualsSubstitution

Bases: Substitution

Substitution that checks if two inputs are equal.

Returns ‘true’ or ‘false’ strings depending on the result.

__init__(left: Any | Iterable[Any] | None, right: Any | Iterable[Any] | None) → None

Create an EqualsSubstitution substitution.

describe() → str

Return a description of this substitution as a string.

property left: List[Substitution]

Getter for left.

classmethod parse(data: Sequence[str | Substitution | Iterable[str | Substitution]])

Parse EqualsSubstitution substitution.

perform(context: LaunchContext) → str

Perform the substitution.

property right: List[Substitution]

Getter for right.