TextMagic (http://www.textmagic.com) offers a convenient way to send text messages programmatically. This package provides a simple Python API on top of the TextMagic HTTPS API.
Project documentation and source code is hosted at http://code.google.com/p/textmagic-sms-api-python/ The package can be dowloaded from http://pypi.python.org/pypi/PyTextMagicSMS/ -- http://mail.python.org/mailman/listinfo/python-list