constucting a lookup table

[mhodkin at comcast.net]

I'm new to Python and want to contruct a "lookup table" which would be
similar to a spreadsheet in that a value is read along the first
column, then along the top row, and the intersection of the two gives a
value that is hard-coded, i.e. not mathmatically related.  An example
would be a table with HEIGHT in the first column, WEIGHT in the first
row, and estimated SUITSIZE with the body of the table.

Which Python type would be most appropriate and/or efficient?

thanks