3 examples of 'python list contains' in Python

101
def __contains__(self, value):
102
	return value in self._dict

6
def rcontains(obj, seq):
7
    """Act like contains, but takes reverse argument order.
8
9
    Motivation: use it like ge, le, gt, lt etc. (aka operator(value, const))
10
    """
11
    return contains(seq, obj)

981
def ll_listcontains(lst, obj, eqfn):
982
    lng = lst.ll_length()
983
    j = 0
984
    while j < lng:
985
        if eqfn is None:
986
            if lst.ll_getitem_fast(j) == obj:
987
                return True
988
        else:
989
            if eqfn(lst.ll_getitem_fast(j), obj):
990
                return True
991
        j += 1
992
    return False