[Mailman-Users] UnicodeDecodeError with Mailman 2.1 and Python 2.6

Mark Sapiro mark at msapiro.net
Wed Sep 2 03:14:57 CEST 2015

On 09/01/2015 12:09 PM, David Magda wrote:
> Could the new version of Python been chocking on a binary file whose
> format has changed from the old version? Is it prudent to do an "arch
> --wipe" when changing versions of Python?

The exception is thrown in Python's sort() method. There are no
documented changes in this method's calling sequence between Python 2.5
and 2.6, but it's quite possible there were changes in the details of
the key comparison code that are responsible.

No it is not prudent to do an "arch --wipe" when changing versions of
Python?. It is not a good idea to ever do "arch --wipe" unless it's
really necessary. See the section "NOTE ON MBOX ANOMALIES:" at

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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