Found the answer myself: the _meta attribute of an instance has the information:

    model_instance._meta.db_table


Is there a fixed point in the MD5 transformation, i.e. does there exist x such that `md5(x) == x`?

Is there an MD5 Fixed Point where md5(x) == x?

This is a slightly.. vain question, but BuildBot&#39;s output isn&#39;t particularly nice to look at..

For example, compared to..

- [phpUnderControl](http://phpundercontrol.org/about.html)
- [Jenkins](http://jenkins-ci.org/content/about-jenkins-ci)
 - [Hudson](http://blogs.oracle.com/arungupta/entry/top_10_features_of_hudson)
- [CruiseControl.rb](http://cruisecontrolrb.thoughtworks.com/)

..and others, [BuildBot](http://buildbot.python.org/stable/) looks rather.. archaic

I&#39;m currently playing with Hudson, but it is very Java-centric (although with [this guide](http://redsolo.blogspot.com/2007/11/hudson-embraces-python.html), I found it easier to setup than BuildBot, and produced more info)

Basically: is there any Continuous Integration systems aimed at python, that produce lots of shiny graphs and the likes?

---
**Update:** Since this time the Jenkins project has replaced Hudson as the community version of the package. The original authors have moved to this project as well. Jenkins is now a standard package on Ubuntu/Debian, RedHat/Fedora/CentOS, and others. The following update is still essentially correct. The starting point to do this with [Jenkins](http://jenkins-ci.org) is different.

***Update:*** After trying a few alternatives, I think I&#39;ll stick with Hudson. [Integrity](http://integrityapp.com/) was nice and simple, but quite limited. I think [Buildbot](http://buildbot.net/trac) is better suited to having numerous build-slaves, rather than everything running on a single machine like I was using it.

Setting Hudson up for a Python project was pretty simple:

- Download Hudson from http://hudson-ci.org/
- Run it with `java -jar hudson.war`
- Open the web interface on the default address of `http://localhost:8080`
- Go to Manage Hudson, Plugins, click &quot;Update&quot; or similar
- Install the Git plugin (I had to set the `git` path in the Hudson global preferences)
- Create a new project, enter the repository, SCM polling intervals and so on
- Install `nosetests` via `easy_install` if it&#39;s not already
- In the a build step, add `nosetests --with-xunit --verbose`
- Check &quot;Publish JUnit test result report&quot; and set &quot;Test report XMLs&quot; to `**/nosetests.xml`

That&#39;s all that&#39;s required. You can setup email notifications, and [the plugins](http://wiki.hudson-ci.org/display/HUDSON/Plugins) are worth a look. A few I&#39;m currently using for Python projects:

- [SLOCCount plugin](http://wiki.hudson-ci.org/display/HUDSON/SLOCCount+Plugin) to count lines of code (and graph it!) - you need to install [sloccount](http://www.dwheeler.com/sloccount/) separately
- [Violations](http://wiki.hudson-ci.org/display/HUDSON/Violations) to parse the PyLint output (you can setup warning thresholds, graph the number of violations over each build)
- [Cobertura](http://wiki.hudson-ci.org/display/HUDSON/Cobertura+Plugin) can parse the coverage.py output. Nosetest can gather coverage while running your tests, using `nosetests --with-coverage` (this writes the output to `**/coverage.xml`)

&quot;Pretty&quot; Continuous Integration for Python

Given a model&#39;s instance object, how can I get the database table&#39;s name?

I don&#39;t want to specify names explicitly in the Meta class.

How to read the database table name of a Model instance?

<p>Given a model's instance object, how can I get the database table's name?</p>
<p>I don't want to specify names explicitly in the Meta class.</p>


I am writing an application where I will be accessing the database from django and from a stand alone application. Both need to do session verification and the session should be the same for both of them. Django has a built in authentication/session verification, which is what I am using, now I need to figure out how to reuse the same session for my stand alone application.

My question is how can I look up a session_key for a particular user?

From what it looks there is nothing that ties together auth_user and django_session



How to lookup django session for a particular user?

So, when playing with the development I can just set `settings.DEBUG` to `True` and if an error occures I can see it nicely formatted, with good stack trace and request information.

But on kind of production site I&#39;d rather use `DEBUG=False` and show visitors some standard error 500 page with information that I&#39;m working on fixing this bug at this moment ;)  
At the same time I&#39;d like to have some way of logging all those information (stack trace and request info) to a file on my server - so I can just output it to my console and watch errors scroll, email the log to me every hour or something like this.

What logging solutions would you recomend for a django-site, that would meet those simple requirements? I have the application running as `fcgi` server and I&#39;m using apache web server as frontend (although thinking of going to lighttpd).

How do you log server errors on django sites

I have a models `A` and `B`, that are like this:

    class A(models.Model):
      title = models.CharField(max_length=20)
      (...)
    
    class B(models.Model):
      date = models.DateTimeField(auto_now_add=True)
      (...)
      a = models.ForeignKey(A)

Now I have some `A` and `B` objects, and I&#39;d like to get a query that selects all `A` objects that have less then 2 `B` pointing at them.

A is something like a pool thing, and users (the B) join pool. if there&#39;s only 1 or 0 joined, the pool shouldn&#39;t be displayed at all.

Is it possible with such model design? Or should I modify that a bit?

Django models - how to filter number of ForeignKey objects

I am creating my application using Django, and am wondering how I can make Django use my CSS file? What settings do I need to do to make Django see the css file?

NB: On a local machine

How do I use CSS in Django?

In my views.py, I&#39;m building a list of two-tuples, where the second item in the tuple is another list, like this:

    
    [ Product_Type_1, [ product_1, product_2 ],
      Product_Type_2, [ product_3, product_4 ]]

In plain old Python, I could iteration the list like this:

    for product_type, products in list:
        print product_type
        for product in products:
            print product

I can&#39;t seem to do the same thing in my Django template:

    {% for product_type, products in product_list %}
        print product_type
        {% for product in products %}
            print product
        {% endfor %}
    {% endfor %}

I get this error from Django:

&lt;strong&gt;Caught an exception while rendering: zip argument #2 must support iteration&lt;/strong&gt;

Of course, there is some HTML markup in the template, not print statements. Is tuple unpacking not supported in the Django template language? Or am I going about this the wrong way? All I am trying to do is display a simple hierarchy of objects - there are several product types, each with several products (in models.py, Product has a foreign key to Product_type, a simple one-to-many relationship).

Obviously, I am quite new to Django, so any input would be appreciated.





Content Type	Original Author	Original Content on Stackoverflow
Question	Ber	View Question on Stackoverflow
Solution 1 - Django	Ber	View Answer on Stackoverflow

How to read the database table name of a Model instance?

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Solution 1 - Django

"Pretty" Continuous Integration for Python

Is there an MD5 Fixed Point where md5(x) == x?

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