Comma Comma And

comma_comma_and.py

def comma_comma_and(_list, conj=u"and"):
    """
    Accepts a list of strings and returns a single string, stitching it all
    together.

    Eg:
    comma_comma_and(["Papa Bear", "Mama Bear", "Baby Bear"])
    # > "Papa Bear, Mama Bear, and Baby Bear"

    comma_comma_and(["Chocolate", "cake", "ice-cream"], conj="or")
    # > "Chocolate, cake, or ice-cream"

    comma_comma_and(["True", "false"], conj="or")
    # > "True or false"
    """
    _list = list(_list)
    if not _list:
        return u""
    if len(_list) == 1:
        return _list[0]
    if len(_list) == 2:
        # No Oxford comma
        return (u" %s " % conj).join(_list)
    return u", ".join(_list[:-1] + [(u"%s %s" % (conj, _list[-1]))])