Tip: creating a Xapian database in Python

19 January 2010   5 comments   Python

Mind That Age!

This blog post is 8 years old! Most likely, its content is outdated. Especially if it's technical.

This cost me some hair-pulling today as I was trying to write a custom test runner for a Django project I'm working on that creates a test Xapian database just for running the tests. Basically, you can't do this:


Because if you do you end up getting these strange DatabaseOpeningError exceptions. So, here's how you do it:

import xapian

Hopefully by blogging about this some other poor coder will save some time.


Why would you mkdir a database's directory? Makes no sense.
Peter Bengtsson
Because the test runner doesn't work like a normal Django startup. Without first doing this, the first test that tries to open the database in read-only mode will fail. Perhaps there is a more appropriate way but I couldn't immediately find one.
I normally use xappy for xapian stuff, it makes it a lot easier, or at least I look at the source code if there is something that is bugging me. i.e http://code.google.com/p/xappy/source/browse/trunk/xappy/indexerconnection.py"

The makers of it also make xapian core, so xappy has got best use practices in it.
Peter Bengtsson
I'm currently using django-haystack to wrap Xapian. django-haystack actually wraps xapian-haystack.

I might reconsider this because I'm not getting the most out of django-haystack because so much of my work has been to patch and subclass django-haystack in various forms because I'm not using Django's ORM.

I will take a closer look at xappy as it might actually simplify the stack in this project.
Was going nuts because django didn't create it initially. Thanks!

Your email will never ever be published

Related posts

Bookmarklet to replace the current domain with localhost:8000 17 January 2010
oplop - How Oplop works, explained in plain English and in technical detail 20 January 2010
Related by Text:
Be very careful with your add_header in Nginx! You might make your site insecure 11 February 2018
jQuery and Highslide JS 08 January 2008
I'm back! Peterbe.com has been renewed 05 June 2005
Anti-McCain propaganda videos 12 August 2008
I'm Prolog 01 May 2007