On Fri, Apr 29, 2011 at 11:11 AM, Ben Finney <ben+python at benfinney.id.au> wrote: > Would it make sense for ‘NaN’ to be another instance of ‘NoneType’? This is fine IHMO as I (personally) find myself doing things like: if x is None: ... cheers James -- -- James Mills -- -- "Problems are solved by method"