Mutable bytes type

Klaas mike.klaas at
Mon Jan 16 22:46:00 EST 2006

A PEP for a mutable bytes type was composed but withdrawn two years

Another was composed (status unclear) in 2004:

It was mentioned on python-dev in 2004
( and
2005 (
with the latter discussion mentioning that is a likely thing for 3k.

Does anyone know if a well-coded and tested implementation of such a
beast exists now?  Strings make me sad.


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