How to convert float to sortable integer in Python

[robert]

shellon wrote:
> Hi all:
>     I want to convert the float number to sortable integer, like the
> function float2rawInt() in java, but I don't know the internal
> expression of float, appreciate your help!
> 

float comparision works well enough for sorting in Python. What is 
the actual requirement?

see also hash() and id() for keying.

Robert