Currently ScriptIterator depends on FindNV, i.e. it depends on b26_toolkit. Since PyLabControl is supposed to be independent, we should remove this dependency by removing the part that contains 'FindNV' in ScriptIterator and create a new ScriptIterator in b26_toolkit, e.g. ScriptIteratorB26, that inherits from PyLabControl and implements the 'FindNV' functionality.
Currently ScriptIterator depends on FindNV, i.e. it depends on b26_toolkit. Since PyLabControl is supposed to be independent, we should remove this dependency by removing the part that contains 'FindNV' in ScriptIterator and create a new ScriptIterator in b26_toolkit, e.g. ScriptIteratorB26, that inherits from PyLabControl and implements the 'FindNV' functionality.