Creates an expression evaluating to the given object with a weak reference.
Once the object is disposed, it will fail to evaluate.
This expression is meant to break reference cycles.
If you want to keep a reference to object, use gtk.constant_expression.ConstantExpression.new_.
object to watch
a new gtk.expression.Expression
Creates an expression evaluating to the given object with a weak reference.
Once the object is disposed, it will fail to evaluate.
This expression is meant to break reference cycles.
If you want to keep a reference to object, use gtk.constant_expression.ConstantExpression.new_.