Where there is a Will

The Django code in this post comes from the official Django tutorial.

I've tried not to be disingenuous with the comparison, and I'm only going to compare like with like, so I can show code from both frameworks and let you draw your own conclusions. I'll cover the areas where they differ in another post.

Both Moya and Django use models to map databases on to familiar data structures. In the case of Moya, the mapping is done with SQLAlchemy. Django uses its own ORM.

Here's the models.py from the Django tutorial and a Moya version: continue reading…

Tony Northrup does a great job of picking apart various myths and misconceptions regarding photography. His channel is full of other great stuff on photography.

Have you ever needed to test multiple user accounts in your web app?

If you need to check your permissions are working correctly, you might find you are constantly switching users by logging in and logging out. Or you could have an admin user signed in to Chrome, and another user signed in to Firefox. Either way, its a bit of a pain.

Here's a simpler solution; define multiple aliases to 127.0.0.1 in your /etc/hosts file. That way you can have one tab open at http://adminuser:8000/ and another open at http://user1:8000/ with two entirely different user accounts.

This assumes of course that you have a development server running locally, and that your app is configured to serve to these 'domains'.

For example (append this to /etc/hosts):

One of my goals for inthing.io was to make posting events realtime, in that events appear without a page refresh, and within a fraction of a second. And that largely seems to work.

Here's a quick screencast that shows it working:

I'll post about how it works in detail at some point, but the general gist is that there is a Tornado websocket server that inthing uses to broadcast information about updates. That server may be worth open-sourcing if there is enough interest. It could be useful for other projects, and its entirely independent.

There a few options, but I'm going to suggest using the inthing Python module.

First install inthing with PIP. You'll probably know if you need to use sudo or not:

Now fire up Python, and enter the following (copy and paste each line after the >>> prompt):

So far so good. We now have a Stream object called stream, with a corresponding live page on the web. We'll have a look at that later, but lets first do something interesting with it. Enter the following function (copy and paste all the text after the >>>):

If that pasted correctly, we should have a function that generates the Mandlebrot set in ASCII. Add it to the stream with the following:

Finally, to get the URL of the stream, do this:

If you visit that URL, you should see the Mandlebrot set you just generated. continue reading…