“decoder jpeg not available” on Mac OS X

I have an error “decoder jpeg not available” while working on one of my python projects on Mac OS X. Why is that and how to fix it?

Publish post on Facebook Page wall as a Page (not a user) (python + Facebook REST API)

After long days (or even weeks) of fighting with this issue… today I can be proud of myself. At last… I did it and it works! I can publish new posts on Facebook Page wall as a Page, not as a user (admin of that page).

SQLAlchemy: Dependency rule tried to blank-out primary key column…

While I was working on some project (pylons + sqlalchemy), I had an error: “ERROR [project.controllers.blog] Dependency rule tried to blank-out primary key column ‘BLOG_TAG_2_ENTRY.id_blog_entry’ on instance”. How to fix it?

Download files from Amazon’s S3

I had lots of files in my bucket on S3. That’s why downloading these files via firefox plugins wasn’t the best possible idea. I had to create script, which will do it for me.

Get number of your subscribers from Feedburner

While we already know how to create script for getting number of followers from twitter – now it’s the best time for getting number of subscribers from feedburner. Everything will be done in python (django).

Get number of your twitter followers in python

We already know how to implement functionality for automatic adding statuses to twitter. Today we will implement a functionality for automatic downloading a number of your twitter followers in python (django).

django + twitter.com: automatic new statuses

Earlier we created functionality for automatic adding of statuses to blip.pl. Today we would like to do the same thing, however for adding statuses to twitter.com. It will be based on twitter API, so without any “hacks”.

django + blip.pl: automatic new statuses

blip.pl is a Polish microblogging service (some kind of Polish twitter). Today I’d like to present how to integrate python application (django application) with blip.pl API.

INSERT or UPDATE in django’s save() method

Django uses save() method in models to save all kind of data into database. This method is used by framework when you want to add or edit data. That’s great, however sometimes we need to know is it INSERT, or maybe UPDATE. How to check it?

“if” or maybe “=”? What is faster in python?

We did some tests few days ago. Kind of easy problem, however… it’s not so obvious. What should I do? Check if variable exists or just create this variable without checking it?