No One Is Perfect » Python http://watchitlater.com/blog A reluctant foray into the world of blogging. Tue, 08 Nov 2011 12:32:55 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 Provision EC2 instance using boto http://watchitlater.com/blog/2011/09/provision-ec2-instance-using-boto/ http://watchitlater.com/blog/2011/09/provision-ec2-instance-using-boto/#comments Wed, 14 Sep 2011 12:09:23 +0000 Tom http://watchitlater.com/blog/?p=343 Sam Newman recently published a very interesting blog entry on using fabric to apply puppet scripts on remote machines. He left the provision_using_boto() method as an exercise to the reader. That just sounded tempting enough to be a challenge since I hadn’t gotten around to looking at boto. You can find the result of my attempt on GitHub. To be precise aws.py implements the provisioning using boto and fabfile.py drives fabric and puppet. Hope you find it as useful as I have.

]]> http://watchitlater.com/blog/2011/09/provision-ec2-instance-using-boto/feed/ 0 AWS CloudFront invalidation http://watchitlater.com/blog/2011/08/aws-cloudfront-invalidation/ http://watchitlater.com/blog/2011/08/aws-cloudfront-invalidation/#comments Tue, 23 Aug 2011 11:52:24 +0000 Tom http://watchitlater.com/blog/?p=321 It is now possible to invalidate objects (files) in AWS CloudFront distributions. Handy when someone, like me, occasionally publishes files with the wrong content type. Here is how I implement this invalidation in python.

]]> http://watchitlater.com/blog/2011/08/aws-cloudfront-invalidation/feed/ 0 PostgreSQL & Python on Mac http://watchitlater.com/blog/2010/08/postgresql-python-on-mac/ http://watchitlater.com/blog/2010/08/postgresql-python-on-mac/#comments Tue, 31 Aug 2010 13:07:41 +0000 Tom http://watchitlater.com/blog/?p=224 I’ve been playing with Django & MySQL for a while but for my next project I wanted to integrate it with a PostgreSQL database. Everything went well until I wanted to install Psycopg as my python adapter to PostgreSQL.

After a bit of blundering about here’s what it eventually took:

  • Download and install PostgreSQL one-click installer from http://www.postgresql.org/download/macosx. Remember to read the README file before actually running the installer.
  • Download the psycopg2 source from http://initd.org/pub/software/psycopg/.
  • Edit the setup.cfg file to provide a path to the pg_config executable. On my Mac it sits in /Library/PostgreSQL/8.4/bin/pg_config and is not by default on the PATH so if you don’t put it on the PATH or in this configuration file the next step will fail in a spectacular manner.
  • Run ‘sudo easy_install .‘ in the top level psycopg2 source directory.
  • Specify postgresql_psycopg2 when you configure Django’s database layer for your project.
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