pymerase-users — Pymerase Users Mailing List

Re: [Pymerase-users] dead or alive?

[Diane T. <di...@ca...>]

> I'm new to this list and pymerase. I've tried to install it with no
> success. It seems the smw library hardly depends on python2.2. I've
> followed some links untill I found smw is no longer under develop but
> they developers switch to another project called coral.

Yeah, they let me include enough of smw for pymerase to work, and I never got 
around to updating pymerase to coral.

>
> On the other hand, pymerase seems a dead project (most of the info is
> from 2003)... It's alive? are you there?

Hmm... I'd say it's on life support, occasionally we do some bug fixing. (I 
kind of prefer sqlobject but can understand why someone might want to use 
pymerase).

can you post the error message your getting, I can try to help diagnose it.

diane

[Pymerase-users] dead or alive?

[jonhattan <jo...@po...>]

Hi,

I'm new to this list and pymerase. I've tried to install it with no
success. It seems the smw library hardly depends on python2.2. I've
followed some links untill I found smw is no longer under develop but
they developers switch to another project called coral.

On the other hand, pymerase seems a dead project (most of the info is
from 2003)... It's alive? are you there?


cheers,
jonhattan

[Pymerase-users] New Disk Based Transaction Manager in CVS!

[Brandon K. <ki...@ca...>]

The transaction manager now supports storing the sql_statements on disk
rather then in memory. Now you can use the new disk based transaction
manager by calling:

tm = dbs.createTransactionManager(disk_based=True) #Default = False

[Pymerase-users] dbAPI ~30% speed up in CVS!

[Brandon K. <ki...@ca...>]

I took Diane's advice and added a global variable in the
dbAPI module called INCLUDE_WARN_CALLS, which by default is
set to false. Now almost all warn calls won't happen unless
you import dbAPI setting dbAPI.INCLUDE_WARN_CALLS to True.
This seems to have created about a 30% increase in speed!

[Pymerase-users] Memory Leak Bug Fix in CVS

[Brandon K. <ki...@ca...>]

I've checked in a major memory leak bug fix into CVS and is available on
http://pymerase.caltech.edu. I've created ten unittests which pass now
after the patch and did some additional tests. I still may need more
testing. If any new bugs are found, please submit a bug report. If
anyone would like more information about how to take advantage of the
new memory saving abilities, please send a message to the mailing lists.
Enjoy! 
 
DETAILS: 
Fixes for bugs 1256258 and 1256271. Memory leak should now be fixed. Ten
test cases have be implemented in tests/TestMemLeak.py... All ten pass
currently. I tested for slow down in creating and commiting 10,000
objects to a database. It has a 0.2 sec slow down in a 94 sec time
frame. The fix includes an object cache which reuses objects which have
already been pulled into memory (using weakrefs). Also, there is a new
function for DBClass objects called _destroySelf. This function must be
called before calling del on an DBClass object. This is only useful when
you want to free up some memory when your done with a DBClass object,
but the program is going to continue to run. It works by removing all
references to the class your trying to remove so that the python ref
count will be low enough for garbage collection to free up the memory.
Calling del without calling _destroySelf will NOT remove the object from
memory. To go back to the memory leaky version check out tag
'pre_aug_2005_mem_patch'.

[Pymerase-users] FASD project: Online survey launched

[<ben...@id...>]

Dear Open Source developer

I am doing a research project on "Fun and Software Development" in which I kindly invite you to participate.
You will find the online survey under http://fasd.ethz.ch/qsf/. The questionnaire consists of 53 questions and you will need about 15 minutes to complete it.

With the FASD project (Fun and Software Development) we want to define the motivational significance of fun when software developers decide to engage in Open Source projects. What is special about our research project is that a similar survey is planned with software developers in commercial firms. This procedure allows the immediate comparison between the involved individuals and the conditions of production of these two development models. Thus we hope to obtain substantial new insights to the phenomenon of Open Source Development.


With many thanks for your participation,
Benno Luthiger


PS:
The results of the survey will be published under http://www.isu.unizh.ch/fuehrung/blprojects/FASD/.
We have set up the mailing list fa...@we... for this study. Please see http://fasd.ethz.ch/qsf/mailinglist_en.html for registration to this mailing list.

_______________________________________________________________________

Benno Luthiger
Swiss Federal Institute of Technology Zurich
8092 Zurich

Mail: benno.luthiger(at)id.ethz.ch
_______________________________________________________________________

[Pymerase-users] Users of Pymerase

[Brandon K. <ki...@ca...>]

Hi All,
    I am sending this e-mail to incourage people to make posts to the 
pymerase-users mailing list. Feel free to make comments if your have 
problems with Pymerase, if you have ANY questions about Pymerase, or 
want to discuse what you wish it could do. It also would be helpful to 
know what users wish to do with Pymerase. Also, if something doesn't 
work, and we don't know about it, it won't get fixed.
    Please note that are features of Pymerase which haven't been 
documented as of yet, so if you are using Pymerase, please contact us, 
we will answer your questions and try to help you get Pymerase running 
if you need help.

-Brandon

[Pymerase-users] Users List

[Brandon K. <ki...@ca...>]

Hi All,
    Feel free to use this list to discuse anything related to Pymerase. 
Ask questions, suggest ideas, discuse potential projects which would use 
Pymerase. Or even just say hi. Diane and myself are watching this list.  
Enjoy and post often!

-Brandon