[ZODB-Dev] SVN: ZODB/trunk/ Note split of persistent.

[Tres Seaver]

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On 08/26/2012 07:05 AM, Hanno Schlichting wrote:
> On Sat, Aug 25, 2012 at 4:11 PM, Tres Seaver <tseaver at palladion.com>
> wrote:
>> This failure, and the others like it, indicate that the buildout
>> has failed to install persistent correctly (there is nothing
>> Windows-specific about the failure)::
> 
> I actually got the same error locally.
> 
> The trouble is the timestamp.py module and the TimeStamp.c extension. 
> During installation setuptools creates a wrapper for the extension 
> file. So you end up with TimeStamp.so but also a timestamp.py
> wrapper. This wrapper overwrites the original timestamp.py module.
> 
> You likely have a case-sensitive file system and therefor didn't get 
> this problem.

Whoever came up with the idea of a case-insensitive filesystem should be
shot (or at least, whoever decided to keep doing that after moving off of
DOS).

I have worked around this problem (I think) by renaming the extension
module to '_timestamp.so'.  I released a 4.0.1 to PyPI with this fix,
along with a fix for the int -> long overflow on 32-bit systems.

> I think TimeStamp.c has been there before and is imported in other 
> modules as "from persistent.TimeStamp import TimeStamp". So we should 
> keep that API and use a different name for the new timestamp.py 
> module.

I don't see the need for the BBB-preservation here:  I documented the
backward-incompatibility in CHANGES.txt instead.


Tres.
- -- 
===================================================================
Tres Seaver          +1 540-429-0999          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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