Which of the following is NOT a major element of a Python for loop?

Select one answer, then check.

• The nested cycle.
  Correct. The primer names three major components: the iteration variable, the iteration list, and the body of the loop. "Nested cycle" is not one of them.
• The iteration variable.
  Not quite. The iteration variable is one of the three major components, representing each element of the list one at a time.
• The iteration list.
  Not quite. The iteration list is one of the three major components: it is the data the loop iterates over.
• The body of the loop.
  Not quite. The body is one of the three major components: the code that runs once for each element.

Which of the following is NOT true about Python for loop patterns?

Select one answer, then check.

• Loop patterns are built into Python, like functions or if statements.
  Correct, this is the false statement. A loop pattern is a reusable code template that you copy and paste into your own program and fill in the blanks; it is not a language feature like a function or an if statement.
• They will always have blanks to fill in, an iteration variable, and a value resulting from the loop.
  Not quite, this is true. Every pattern has blanks for the original list, an iteration variable, and some resulting value.
• There are many patterns, including Count, Filter, and Find.
  Not quite, this is true. Count, Filter, and Find are three of the patterns listed in the primer.
• Minimum and Maximum patterns can find the lowest and highest values in a list.
  Not quite, this is true. That is exactly what the Minimum and Maximum patterns do.

Which of the following is a disadvantage of composing loops in functions?

Select one answer, then check.

• It increases the number of functions you have to write and test.
  Correct. The primer names this as the trade-off ("although this increases the number of functions you have to write and test") before listing the advantages.
• Each function can be tested in isolation.
  Not quite. The primer lists this as the first advantage, not a disadvantage.
• The functions are reusable, so you might save yourself some work.
  Not quite. The primer lists this as the second advantage, not a disadvantage.
• The final problem becomes easier to address with a few function calls rather than one big, ugly for loop.
  Not quite. The primer lists this as the third advantage, not a disadvantage.