dimod.variables.Variables._append¶
- Variables._append()[source]¶
Append a new variable.
- Parameters
v (hashable, optional) – Add a new variable. If None, a new label will be generated. The generated label will be the index of the new variable if that index is available, otherwise it will be the lowest available non-negative integer.
permissive (bool, optional, default=False) – If False, appending a variable that already exists will raise a ValueError. If True, appending a variable that already exists will not change the container.
- Returns
The label of the appended variable.
- Return type
hashable
- Raises
ValueError – If the variable is present and permissive is
False. –
This method is semi-public. it is intended to be used by classes that have
Variables
as an attribute, not by the the user.