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Alright, so let's go through the
solution to the mini challenge, that I

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added at the end of the last video. And
how did you get on? Did you manage to

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complete it? The reality is, that adding a
new item involves far more work than it should.

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We have to make three changes to
the program, so let's go through and add

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the option to the menu first. So I'm
coming down and adding an option to

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option 6, down here, which is our hdmi
cable: print parentheses double quotes

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6 : hdmi cable, and we've got a double quote

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and a right parenthesis. Next, we have to
include a test for when the customer

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chooses item 6 - that'll be here. So we'll
add an elif there: elif current_choice

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is equal to - two equal signs - and
6 in single quotes and a colon.

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Then we'll do a computer_parts.append and in parentheses, we're going to add hdmi cable.

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So that's the second change. The
program still won't work, though,

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and that's because - if we go back up to line
five here - we check that the choice is in 1,

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2, 3, 4, 5. If we were happy to lose line 6 -
the line that prints the choice being

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added - then we could delete line 5 as
well, but if we want to keep that print

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statement, we need to add 6 to the string,
on line 5. I'm going to do that.

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Let's test the program to make sure that we can add an hdmi cable. I'm gonna add another

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item first - a computer, adding one. Let's
do 6, adding hdmi cable. Let's exit the

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program now, and you can see we've now
got a computer and a hdmi cable.

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Alright, so that works, but I think you'd
agree it was much harder than it should

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have been. This code - the way it's been
coded - isn't very easy to maintain.

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So it would certainly be much neater if we
could just add new items to a list and

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have everything else just work. Can we do
that? Of course we can, and this is a good

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way to see how useful lists can be, and
we'll start improving our code to achieve

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that, in the next video.