[Numpy-discussion] force column vector

Hi, when creating an ndarray from a list, how can I force the result to be 2d *and* a column vector? So in case I pass a nested list, there will be no modification of the shape and when I pass a simple list, it will be converted to a 2d column vector. I can only think of a solution using 'if' clauses but I suppose there is a more elegant way. Thanks, Christian