python backward incompatibilities

Peter Hansen peter at
Tue Nov 2 15:03:31 CET 2004

David Goodger wrote:
> [Peter Maas]
>> I tried to find a comprehensive list of Python backward incompatibilities
>> without success. What is the fastest way to compile such a list
>> (with code examples / expected results)? Thanks for your hints.
> PEP 290 would be a good start:

In addition, read AMK's "What's New" pages and inverting
might be a good next step:
(I'm pretty sure he noted each real backwards incompatibility
as the new releases came out.)


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