Konrad Hinsen writes:
"Chris Barker"
writes: use one as an index? Personally, this is what has bit me in the past: I
At least up to Python 1.5, no, indices have to be of integer type. I don't know if that condition was extended in later versions.
could use A[3,2] as an index if A was type "Int" but not if it was "Int16" for example.
Ehmmm... Are you sure that is the right example? The restriction is on the type of the index, not on the type of the array.
I think Chris is referring to the fact that Numeric returns a rank-0 array for A[3,2] if A is of type Int16, and that value cannot be used as in index in Python sequences (at least for now; nothing technical prevents it from being implemented to accept object that have an __int__ method). This is the odd inconsistency Numeric has now. If A were a 1-d Int16 array then A[2] would not be a rank-0 array, nor is A[3,2] a rank-0 array if A is of type Int32 (apparently because a Python scalar type suffices). Why it gives rank-0 for 2-d and not 1-d I have no idea.