#10933: Avoid " TypeError: Cannot convert Decimal("0.0000") to Decimal " when
the
decimal module has been reloaded
-------------------------------------+-------------------------------------
Reporter: gagravarr | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.3
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: dceu2011 | Needs documentation: 0
Has patch: 1 | Patch needs improvement: 0
Needs tests: 1 | UI/UX: 0
Easy pickings: 0 |
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Changes (by MaDeuce):
* cc: MaDeuce (added)
Comment:
Replying to [comment:22 jonaskoelker]:
>
http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Multiple_Python_Sub_Interpreters
explicitly mentions decimal.Decimal in the context of psycopg2. I'm
experiencing this problem using sqlite3 as my database, so it's obviously
not limited to PostgreSQL. I think this explains why the
workaround/solution in comment:15 works. HTH :-)
Like jonaskoelker, I'm using sqlite3 with Django 1.3, mod_wsgi 3.3, and
have the problem. Unfortunately, modifying my httpd.conf to align with
that of comment:15 does not make the problem go away. I will try the
patch offered in comment:18, as I'm out of other ideas. However, since I
don't understand what is causing mod_wsgi to reload Decimal in the first
place, I don't have much confidence that it will resolve my specific
problem (even though it may indeed resolve the psycopg2 problem). If
someone could offer pointers as to how to track down the root cause of the
reload, I'd be highly appreciative. I can only reproduce after about an
hour of intense load on a production system, so it's difficult to conduct
experiments. I'm also a little concerned that the fix of comment:18 is
1.5 years old and (AFAICT) has not been incorporated into the Django code
base; are there any negative side-effects?
--
Ticket URL: <https://code.djangoproject.com/ticket/10933#comment:23>
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