"Antoon Pardon" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On 2006-07-15, Terry Reedy <[EMAIL PROTECTED]> wrote: >> The problem with understanding augmented assignment is that it directs >> the >> compiler and interpreter to do one or maybe two mostly invisible >> optimizations. To me, the effective meaning of 'evalutating once versus >> twice' is most easily seen in the byte code generated by what is, >> remember, >> the reference implementation. What it does is what the >> less-than-super-clear doc means. > > But what does one do, if the question is raised whether or not the > code generated actually behaves as described by the language reference? > > Shouldn't the language reference be clear enough to be understandable > without the help of byte code generated by the reference implementation? > Otherwise the reference implemenation is being used as part of the > language definition and then it can never be wrong. > > -- > Antoon Pardon > -- > http://mail.python.org/mailman/listinfo/python-list >
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