16: Classes and functions
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Now that we know how to create new types, the next step is to write functions that take programmer-defined objects as parameters and return them as results. In this chapter I also present “functional programming style” and two new program development plans.
Code examples from this chapter are available from http://thinkpython2.com/code/Time1.py. Solutions to the exercises are at http://thinkpython2.com/code/Time1_soln.py.