Muffinresearch Labs by Stuart Colville

Google App Engine | 0 Comments

Posted in Code, Software on 8th April 2008, 8:25 am by

Fancy running a Python app on Google’s scalable architecture? Now you can. Google App Engine has launched offering developers the ability to run python applications (other languages to follow) using a wsgi compliant framework via a built-in framework called webapp. You also get access to datastore
which shows a lot of similarities to Django’s modelling API. Datastore is an API that allows you access to Google’s scalable database infrastructure and if you want you can also use GQL which stands for Google Query Language which is essentially a subset of SQL.

Django Included

Google have also included Django in the box and there are details of how to configure Django to work within Google App Engine. This highlights the benefits of a framework comprising of loosely coupled components. The only main difference using Django with Google App Engine is that you use the Datastore API instead of the Django data modelling API.

Usage limitations

Signing up is free however the following limitations are stipulated:

A free account can use up to 500MB of persistent storage and enough CPU and bandwidth for about 5 million page views a month

Conclusion

All in all this is a great announcement from Google – for me it’s things like this that validate Python as a mature language for use on the web. This also provides an excellent starting-point for anyone who wanted to use Python for a web app but didn’t have the means to get started. The app framework is well-documented and I for one look forward to trying it out.

via Simon Willison

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Insert a tab character in vim when expand tabs is on|(0)

I have vim set-up to use spaces in place of tabs. Sometimes you need to use an actual tab e.g. editing a Makefile. Now whilst it’s possible to change settings so that tabs are used for specific files, a quick tip to remember is to simply type in insert mode:

Ctrl+v tab

That is Ctrl and “V” and hit the tab key, et voila you’ve entered an actual tab.

GNU screen: open tab in current working directory|(1)

A nice trick for having screen open a new tab in the same directory as the one you’re currently in. To use it add it to your .screenrc

# Open new window in current dir.
bind c stuff "screen -X chdir \$PWD;screen^M"
bind ^c stuff "screen -X chdir \$PWD;screen^M"

Hat tip: mteckert on SuperUser.com

Photos on Flickr

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