current_namespace: VariableNamespace

__init__(self, name, namespace=None, value=None, callbacks=(), output_pane=None, autounlink=True): 

LLM Docstring

A reactive variable that synchronizes its value across linked widgets and fires callbacks on change.

• name: Any

  the variable name

• namespace: Any

  the owning namespace

• value: Any

  the initial value

• callbacks: Any

  change callbacks

• output_pane: Any

  the output pane for error display

• autounlink: bool

  unlink other widgets when a new one links

__repr__(self): 

LLM Docstring

Return a representation showing the name and value.

• :returns: str

  the representation

@classmethod
create_var(cls, var, namespace=None, **opts): 

LLM Docstring

Resolve a name (or synchronizer) to a VariableSynchronizer in the namespace, creating and caching it if needed, and registering it with the active variable set.

• var: Any

  the variable name or synchronizer

• namespace: Any

  the namespace (defaults to the current one)

• :returns: VariableSynchronizer

  the variable

@property
name(self): 

LLM Docstring

The variable’s name.

• :returns: _

  the name

@property
value(self): 

LLM Docstring

The variable’s current value. Setting it propagates to linked widgets and fires the change callbacks.

• :returns: _

  the value

set_value(self, v, caller=None): 

LLM Docstring

Set the value (if changed), firing the change callbacks and propagating to every linked widget except the caller.

• v: Any

  the new value

• caller: Any

  the widget that triggered the change (not re-notified)

link(self, widget): 

LLM Docstring

Link a widget to the variable: seed the variable from the widget’s value, observe the widget for changes, and (if autounlink) unlink other widgets.

• widget: Any

  the widget to link

unlink(self, widget): 

LLM Docstring

Unlink a widget from the variable, removing its change observers.

• widget: Any

  the widget to unlink