Django: show me the sql!
This week, I noticed that there was a select query in our production system without a where clause, and it was running a lot. Tracking it down, I found the ...
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Python: Convert your FBML Facebook app to IFRAME
Recently, users started reporting that our Facebook app was returning a blank screen. Tracking it down, it turned out that it was specifically when the user...
Django: send emails for doctest failures
If you're using Django's unit/doc testing functionality, you would typically be running those tests manually on your local machine. This week, I decided tha...
Ubuntu + Cisco VPN from the command-line
While the vpn client feature in the Ubuntu UI is very good, sometimes you need to VPN purely from the command-line. For example, if you need to VPN from a h...
Facebook: Authenticate w/o the JavaScript SDK (Python)
If you're using the Facebook JavaScript SDK to implement Facebook connect, your site may be more fragile than you think. Last weekend, I ran into an issue w...
HAProxy Quickstart w/ full example config file
I recently installed HAProxy as a web server load balancer. While their documentation is great, I found it lacking a complete example of a working configura...
Django fix_IE_for_vary “bug”
I was briefly perplexed by an IE only bug this week. An Ajax call was throwing the following 500 exception, but only in IE.
cat to syslog
Ever wanted to submit the results of regular command-line tools to syslog? Logger lets you do that. Here is an example of logging CPU load and vmstat into t...
Quickstart: Log shipping with Postgres 8.4
The official Postgres documentation covers log shipping (aka WAL Archiving, aka warm standby) in some depth. But it's still quite a lot to absorb. The basic...
Sanitize HTML with Beautiful Soup
If you have a website that displays user-generated HTML (emails, rich text entry, etc), you likely want to scrub that HTML before you display it. At the ver...