Posted on in Programming
I've mentioned before that
empty strings in Python are false.
This leads to a common if not string paradigm. Unfortunately, this can be
problematic. Check out this snippet:
>>> string = ""
>>> if not string:
... print("empty")
...
empty
That pretty much worked out just as we imagined. The empty string returned False
and …
Posted on in Programming
Although I use Git all day long, I actually prefer to use Mercurial for my personal stuff. When I started working on this project to maintain slaptijack.com with Pelican rather than continuing to use Wordpress, one of the things that really interested me was the ability to keep Markdown …
Posted on in Programming
This is was my next project.
Update: For now I've solved this problem by using FeedWordPress to pull the Atom feed for the Pelican-specific portion of the website.
Posted on in Programming
Posted on in Programming
Sometimes this pops up when you least expect it:
Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.
This morning, I went to refresh one of my git repo's for work, and make spit
that out. What the heck happened last night? Anyway, the …
Posted on in Programming
Once again I was working on some Python code for EVE Online. This particular bit of code gathers a list of kills for a particular region and then summarizes that data in a daily report. Everything had been working properly, until one day...
Traceback (most recent call last):
File "/Users …Posted on in Programming
The other night I was working on some Python code that interacts with the zKillboard API. The API call returns kill information via JSON for EVE Online. While making the request, I was getting an error that I was using "non-acceptable encoding." It turns out that the zKillboard guys require …
Posted on in Programming
This will just be a short reminder. If you're planning to create multiple-column indexes in MySQL, remember that the order of the columns matters. As the MySQL documentation points out, any "leftmost prefix of the index can be used." This means that the index can be used for any number …
Posted on in Programming
I usually start my posts off with an image that is relevant to the post. I think it adds a bit of drama to what I'm writing about, and it also gives me a nice place to anchor a link to a WordPress tag about the subject. I had this …
Posted on in Programming
Occasionally, you may run across a date in a format that can't be easily loaded into a Python date object. For example, I recently had a situation where a file I was parsing was full of dates in this format: 7/7/2008.
The obvious thing to do here is …
Posted on in Programming
Recently I was working on some old code. One of my model methods was originally written such that if one parameter was set to the Python None type, a particular set of actions would occur. For some reason, I checked for None like this:
if parameter is None:
do something …Posted on in Programming
As I mentioned the other day, I'm building a RADIUS client in Python for sending disconnect messages to Cisco routers.
One hang-up with the pyrad package is that it requires a dictionary file in order to map RADIUS attribute names to codes and types. In the case of my client …
Posted on in Programming
I've been working on a RADIUS client in Python that can send a disconnect message (packet of disconnect) to a Cisco router. I'm using pyrad 1.2 for the project.
I ran into this problem pretty quickly:
POD: 192.168.9.9 request queued
POD: Illegal authenticator in POD from …Posted on in Programming
>>> print "".join(" hello world ".split())
helloworld
The key to the above is that split() separates the string on
any amount of whitespace when no separator is specified.
Posted on in Programming
If you need to debug what queries your WordPress site is making, try adding the
following PHP to your theme:
<?php
foreach ( $wpdb->queries as $query ) {
echo "$query[0]<br />";
}
?>
For this code to work, you need to add the following line to wp-config.php:
define('SAVEQUERIES', true);
After that …
