Silly newbie question - Caret character (^)

[Lawrence D'Oliveiro]

In message <mailman.778.1289325458.2218.python-list at python.org>, Terry Reedy 
wrote:

> Your two 'nitpicks' about fflush have both come up on this list as real
> issues causing people problems.

Cache on disk drives is a bug, not a feature. Performance-wise, it’s fast 
RAM hobbled by being located on the wrong side of a connection to the CPU 
that isn’t designed to transfer data at RAM speeds. And of course 
correctness-wise, it’s another complication in implementing the semantics of 
OS operations that are supposed to guarantee that data has been saved to 
persistent storage.