common.py 文件源码

def intersect(valueA, valueB, lowerCase=False):
    """
    Returns intersection of the array-ized values

    >>> intersect([1, 2, 3], set([1,3]))
    [1, 3]
    """

    retVal = []

    if valueA and valueB:
        valueA = arrayizeValue(valueA)
        valueB = arrayizeValue(valueB)

        if lowerCase:
            valueA = [val.lower() if isinstance(val, basestring) else val for val in valueA]
            valueB = [val.lower() if isinstance(val, basestring) else val for val in valueB]

        retVal = [val for val in valueA if val in valueB]

    return retVal