using the Variable as an index into a Constant

[count...@gmail.com]

When I attempted the code below, I got an error about using a non-integral type inside of the brackets. That is was I had wanted to do, though. I expected that the bracket operator on a Constant would have an overload that took a cvxpy primitive. How difficult would it be to make this work? Or maybe there is some other method I should be using? (Note: I know that I can solve my problem this with a boolean mask; I have that working at present. I was just looking for an exponential decrease in variable count.)

A = cvxpy.Constant(my_long_data_vector)

x = cvxpy.Variable(x_len, integer=True)

... add some constraints on x ...

objective = cvxpy.Minimize(A[x[0]]+A[x[1]]...)

[Steven Diamond]

What you're trying to do with indexing is fundamentally not possible in cvxpy. There may be some workaround involving matrix multiplication (where one multiplicand is a variable), but definitely nothing where you index with the value of a variable.