Class 31 — April 3

You are so controlling

Working Together – Structured Collaboration – New understanding

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Look both ways

• Back or ahead

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Agenda

• Consider module development

• Problem solve

• Start preparing for test 2 on Monday

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Want to be a TA next semester

• Fill out for the application

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Time to redownload

• url.py — adds additional web acccess

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Parameter passing nuances

• Examine parameter passing nuances

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Module of the day aid.py

• Examine and think about algorithms for the problems. However, do not write any code before class.

• Downloads

• Module aid.py

• Program abet.py help you test your module aid functions.

• Complete the implementation of three functions. None of your functions should get input or print output.

Function rotate( x )

• Updates list x by moving the last element of list x (if any) to the beginning of list x. This type of list transformation is often called a circular shift. In carrying out its action, the function does not perform an expicit return.

Function rotate_k_times( x, k )

• Updates list x by performing k circular shifts. In carrying out its action, the function does not perform an expicit return.

Function common( x, y )

• Returns a new list whose elements are those elements in x that are also in y. The ordering of elements in the return list should reflect their ordering in x.

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To do

• To prepare for the test, review homework solutions

• Examine parameter passing nuances

• Assignment 17: same_difference.py

• Assignment 17: do_you_relate.py

• Assignment 18: count_down.py

• Assignment 19: common_commodities.py

• Assignment 20: take_it_away.py

• Assignment 21: hodge.py

• Assignment 22: beanery.py

• Assignment 23: magnificent.py

• Assignment 24: quad.py