How to force PyYAML to dump date with a z at the end?

I'm trying to write some yaml files with python that can be parsed
with ruby.  The problem I'm having is that that PyYAML dumps datetime
objects in a format that ruby's parser doesn't recognize as a date.

Here's the python:

>>> import yaml
>>> from datetime import datetime
>>> dt = datetime.now()
>>> yaml.dump(dt)
'2009-03-04 22:53:45.031818\n'

And then in ruby:

irb(main):014:0> YAML::load '2008-09-02 19:18:03.286902'
=> "2008-09-02 19:18:03.286902"

Notice that ruby creates a string.

Ruby also creates a string with this format:

irb(main):021:0> YAML::load '2009-03-04 00:00:00+00:00'
=> "2009-03-04 00:00:00+00:00"

The only time ruby doesn't make a string is when a Z is at the end, like this:

irb(main):022:0> YAML::load '2009-03-04 00:00:00 Z'
=> Wed Mar 04 00:00:00 UTC 2009


So, how do I force python to put that Z at the end when it dumps
datetime objects out?


-- 
Matthew Wilson
[email protected]
http://tplus1.com

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