Python Basics III For and While Loops

Question 1

What is the syntax of a for loop?

Answer 1

Create a list, cycle over the list using for notation.

Question 2

In a For loop, the action does not have to be a function of the list content. Give an example.

Answer 2

Question 3

In contrast to a For Loop, a While Loop does not iterate over a list; it uses a logical condition to control its process. Give an example.

Answer 3

Question 4

You can create a sequence of consecutive integers using the range function. You can use that sequence as the iterator for your for loop. Give an example of that.

Answer 4

Notice the range interval is half-open, it includes the first number but not the last one.

Question 5

range(stop): This function generates a sequence from 0 up to, but not including, the stop value. To get a list object (not a sequence), apply the list function. Evaluating the range will just return itself.

Answer 5

See it here:

Question 6

If you are happy with starting at 0, it is the default for range, and you can leave it off. Take a look.

Answer 6

Question 7

What is “list comprehension”?

Answer 7

It is a shorthand notation for programmatically populating a list using a for a loop.

Question 8

How do you define a function

Answer 8

Like this (it includes a default parameter)

Question 9

Can you index a tuple?

Answer 9

Yes

Question 10

How would you convert a string into a list of words?

Answer 10

Using the split method.