[Python-Dev] unicode Exception messages in py2.7 (original) (raw)

Terry Reedy tjreedy at udel.edu
Thu Nov 14 23:59:08 CET 2013

On 11/14/2013 4:55 PM, Tres Seaver wrote:

About the only things I can think of which might break would be doctests, but people expect those to break across third-dot releases of Python (one reason why I hate them).

My impression is that we avoid enhancing correct exception messages in bugfix (third-dot) releases because of both doctests and other in-code examination of messages.

Exception repr is explicitly not part of any backward-compatibility guarantees in Python.

So we more freely change exception messages in version (second-dot) releases, without deprecation notices or waiting periods.

-- Terry Jan Reedy

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