PEP 284, Integer for-loops

[David Eppstein]

In article <slrna8h5ev.ijc.philh at comuno.freeserve.co.uk>,
 philh at comuno.freeserve.co.uk (phil hunt) wrote:

> Thev reasdon i don't like it is that the syntax already has a 
> meaning: to compare the magnitude of values. Now you are proposing 
> another, totally different, meaning.

How is that unlike the difference in meaning between "in" in expressions 
and "in" in for-loops?