All the code found used in the examples is now on github under snewell4/Metro Chicago Open Data Examples. In addition, a PDF of the views API reference card from Example #10 is included.
The github README explains it:
These files accompany the Metro Chicago Open Data Examples blog. They are
simple examples of using the Socrata Open Data API (SODA) with the Socrata data
portals in use at City of Chicago and Cook County.
The blog has a series of examples each intended to explain the API and
different types of uses. The blog entries are titled "Example #n". The
filenames use the same naming convention. You can read about the purpose
and the explanation of the code in the blog.
There are two exceptions to the naming convention:
1) The blog entry for Example #20 describes three command line utilities.
Those utilities are named getcolumns.py, getquery.py, and getview.py.
2) Example #10 includes a one-page overview of the view API. A copy of that
overview has the filename, view-ref-card.pdf