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Winners will be selected from among form submissions at random, by a Python script which can be viewed online at this site:
http://learning-python.com/pp4e-updates.html#lotto
As described there, the Python script's source code is also online (use your browser's "view source" to see this page's HTML code too):
http://learning-python.com/pylotto.py
In order to work around the security constraints at some sites, the pylotto script can run the lottery in 3 different main modes, selected by command-line options or query parameters: to select from emails, to select from names in a file created by this page, or to select from names typed into a local file manually. Its results can be displayed in console or CGI web reply page formats, and a variety of administrative and test modes are also available.
Note that submitting this form is equivalent to submitting a URL of the following form, typed into a browser window or sent with Python's urllib or similar:
http://learning-python.com/cgi/pylotto.py?-form=yournameTo run the lottery, a URL of the following form is submitted by the instructor (only — if you run this URL yourself, its results will be ignored!):
http://learning-python.com/cgi/pylotto.py?-show=cgi&-find=file