def gcd(a, b):
        while b:
            a, b = b, a % b
        return a
Adds a group of new DockControls to the view.
dataset/ETHPy150Open jasonrbriggs/stomp.py/stomp/backward.py/gcd--crossover with--dataset/ETHPy150Open enthought/traitsui/traitsui/wx/list_editor.py/NotebookEditor.add_controls