def to_list(value):
    if value is None:
        value = []
    elif not isinstance(value, list):
        value = [value]
    return value
Return a tuple of (R, G, B) values in the 0-255 range associated
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/test/testcases.py/to_list--crossover with--dataset/ETHPy150Open ejeschke/ginga/ginga/RGBMap.py/RGBMapper.get_rgbval