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Alright, so how did you get on with the
challenge that I introduced in the

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last video? Did you manage to complete it?
If your program behaves correctly, then

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well done. You may have written your code
differently to the solution you'll see in

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this video, but as long as it works, then
that's fine. I'm gonna start out by

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creating a new Python file here. I'm
gonna call this one summarychallenge.

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So I'm gonna start with a few lines that
print the menu, print parenthesis please

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choose your option from the list below :
there. We want a double quote and right

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parenthesis. Alright, so we'll go with
five options; print parentheses double

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quotes 1 colon backslash t to indent the
code, Learn Python, closing off the line

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there. Print parentheses again, double
quotes 2 : backslash t Learn Java closing

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off the line, print parentheses double
quotes 3 colon backslash t go swimming,

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closing off the line again. I'm sure, by now,
you know you need to do a double quote

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and a parenthesis there, as I'm doing.
Next we're gonna do a 4 in double

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quotes, colon backslash t Have dinner, 
and then on line six, print parentheses

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double quotes 5 colon backslash t Go to
bed. Then the last option was the exit,

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print parentheses double quotes 0 colon
backslash t Exit. Okay. So I've used a tab

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to separate the option numbers from the
descriptions. The menu might look better

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with just a single space, but I want you
to see escape characters used in strings.

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We've only seen tabs used in strings in
one video - the escape character in the

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last section. It's not something you'll
probably do very often, which means it's

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something that you might forget about.
Alright, so the next part of the

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challenge was to keep looping. So we need to
introduce a while loop to do that. So I'm

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gonna do a while true, start that on line 9
Next thing we need to do is to get

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the user's input, or the user's choice, so
we're going to type choice is equal

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to input parentheses. Now our loop is
going to keep looping around forever so

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we need to
break out of it somehow, and we can do

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that by checking to see if they've typed
zero. So I'm going to do that on line 12.

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If choice is equal to, two equal signs,
zero and double quotes : break.

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Alright. So next we need to check for a valid
option. You may have used a series of

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elif blocks here, but a more concise way
is to use in. So I'm going to tab

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back here and go to the elif here,
matching up with the if we've got on line 12.

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So elif choice in, and in double quotes,
1 2 3 4 5, closing off the double quote

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and colon, print parentheses double
quotes You chose, left and right curly

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braces, double quote dot format and
choice in parentheses. For this

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particular program, using in results in
much simpler code than a series of

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elifs, and if you're not sure how that
works, review the in and not in video, earlier

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in this section. Alright, so that's the
first part of the challenge completed.

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Run the program and test it with various
inputs. Entering 1 to 5 should print the

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message - anything else except a 0 will be
ignored. When 0 is entered, the program

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terminates. As I said, you may have done
things a little bit differently from

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what you're seeing here. The main thing is
that you get the same output and the same

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results. So basically, if your solution
behaves correctly, then well done, you've

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completed the challenge. Alright, so
moving on. In the next video, I'm going to

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go over my solution to the optional
extra part of the challenge.

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See you in the next video.