Terry Reedy wrote:
> "Jeff Schwab" <[EMAIL PROTECTED]> wrote in message 
> news:[EMAIL PROTECTED]
> 
> | That's the same behavior I would expect in C, on the grounds that C
> | What I found confusing at first was
> | that the same variable will either directly store or merely refer to an
> | object, depending on the type of the object:
> 
> Since names and collection slots always refer to objects, I find the above 
> confusing.  Can you clarify what difference you percieve?

a += b

Whether a refers to the same object before and after that statement 
depends on what type of object it referred to before the statement.
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