[Python-3000] Immutable bytes type and dbm modules

["Martin v. Löwis"]

>>> This would mean that the Unicode type would acquire all of the ambiquity
>>> currently associated with the 8-bit str type
>> Not necessarily, as this kind of use is typically very localized.
>> Remember practicality beats purity.
> 
> Has anyone considered that, depending on the implementation,
> a latin1-decoded unicode string could take 2-4 times as much
> memory?

I considered it, then ignored it. If you have the need for hashing,
the string won't be long.

Regards,
Martin