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Hello, so and this video will resolve last videos assignments, so once you open your project, just

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create a new file, give it an indicative name, for example, collections.

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List.

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And then practice basics.

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Let's give a nice comment, basically the same one.

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And all right, so first of all, I asked you guys to create a new list, so just declare a name and

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then put the equal mark.

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And once you do that, you see Python does not know if it's a variable of its own or if it's a list

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or he doesn't know what it is.

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But once you apply the square brackets, he immediately removes the red area from below and he knows

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that this is a list.

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So add and then a car brands into the list, so their names.

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So we have to put quotation marks and let's start off with BMW and then it Colma dividing it and then

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Toyota

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and then we have Dassler and Kiya.

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Do you have closing quotation marks here and also, let's see, a small thing, what happens if I remove

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the quotation marks by Chami immediately sets a red line B below the text and Southeastern error, and

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he has some trouble with it.

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All right.

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So let's print it out print and the indicative comment.

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All right, and then put outside quotation marks, the glass.

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Then do the casting into a string.

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All right, we all remember a whole pie chart was angry.

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We were not casting.

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So here we have a string and here we have a list.

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So by Trump does not like two types of data types inside the print, so we need to cast it for all of

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it will be a string that's trying to run it.

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And there we have it.

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We have the list printed as following.

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So let's head over to the next assignment.

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Just print out.

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That one before last, I last them.

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Out of cars list and how do we do it?

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So, first of all, declare the list cars and then if you remember, when we want the last item, we

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put minus one here.

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This is the last item on the off the list.

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But we want one before last.

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So we go one lower minus two.

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Basically what we want to print out is Destler.

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So let's try to print it.

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All right.

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And right here had a comment and a comment, one before last night off the list.

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Plus casting and close it and also, guys, you see when you put your cursor near the brackets, you

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can see the sibling brackets is marked for you.

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So if you get confused, if you're having too many brackets, so you always, always can see who the

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sibling bracket, LAMARTINE Yellow.

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All right.

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And this one as well.

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All right, let's try to run it.

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Great.

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So we have Dassler printed out exactly what we wanted.

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Let's head over to the next assignment and compare it like something happening here in COMPAR.

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Uh, compare.

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Lists item on index one to.

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Toyota strength.

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So we want to pull out from cars.

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The value from one and use a comparison operator double equals sign and to compare it to a simple string,

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which is quotation marks, Toyota like that.

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So all of that needs to be covered with a print.

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All right.

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So closing in, that's an indicative comment about comparison between zero one.

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From cars.

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To.

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Toyota.

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And then close quotation Mark Glass and casting is always to a.

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So I just want to hold on here for a second.

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You might notice that our print actions used to be really simple.

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We just added a simple string and then a variable, and that's it.

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But here we are already trying to print out manipulations.

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So like actions taken inside the print.

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And here we are.

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We have also a comparison operator inside it.

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So it's not as simple as it was before because we have some complications here.

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We have some calculations and but it's the same the same principle.

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Like if you want to add a comment, just add it in quotation marks and then add a plus and cast whatever

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you want inside of records and it will be printed up.

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So let's check this out.

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By the way, what value are we expecting once we're applying a comparison operator?

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So we're expecting a boolean variable rate, a true or false value as we study.

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So let's try to print it.

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Great.

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So we got what we want here.

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We compare the Toyota from inside the list and we compare that with Toyota's simple string and we got

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a true value.

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Let's try to change it to N equals with an exclamation mark, an equal saying.

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And when we run this one, so we get a false because we asked whether Toyota and Toyota are not equal.

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And this is a false statement.

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All right, so let's head over to the next one.

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So now we would like to create a new list called.

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Mixed values, right?

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So we have the mixed values.

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And we want to put some values in it, so first one in line is Jim, so give us a name.

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So we have to put quotation marks in order to indicate that this is a string variable inside the list.

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And this one is a number.

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So no quotation marks needed.

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Next one is Alex, which is also a string.

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And then we have to dot five three, which is a float, also a number of quotation marks.

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And last but not least, we have the boolean variable, which is true.

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And there you go.

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So we have a list that makes one that contains string and float and boolean, and that's great.

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So we have lots of types here and now.

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Once we have it, let's try to printout.

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First of all, we want to print.

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Bring the list, makes the values.

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All right, so closing quotation marks.

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And casting and then mixed values.

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Yeah, all right, that let's try to run it.

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All right, so we printed it out and now let's do an interesting thing, let's just pull out the values

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in the sales between zero and three, including three.

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So print out the values out of mixed values.

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From the cells.

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Zero to three, including three.

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Right.

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So how do we do it?

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So we studied it in the theory part of this, which is declare the list.

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Then inside the square brackets we put the limitation and we have two dots between them like that.

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And do you remember if this is the correct answer?

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Because I think that we need to think again if we agree that this is the correct, because if anyone

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remembers, we said something about the ending of the limitation here, that this one, the third one,

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which one is the third one in the mixed values.

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All right.

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This is zero.

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This is one.

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This is two.

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And this is three.

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So let's see if this value will also be printed.

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As you can see, it's not printed, all right, so it's not printed and this causes us a trouble because

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we wanted to print this value as well.

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So what we need to do is to put number four here and then three will be included as well, which is

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to dot five three.

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So now we see it right here.

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Great.

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And let's go over to the next assignment and try to print out the value off.

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And that's six out of the mixed.

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Values.

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So when we try to print it and that's put the mixed values and square brackets six where we try to print

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it as see, we have no sixth sell in the list.

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We have cell number zero sell number one, two, three, four, and we're finished.

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So we're trying to tell the cold print of the cell number six, but we don't have it.

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So once we run it, obviously we have an error.

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All right.

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So our everything comes after this will not be executed.

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Let us check.

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Let's try to see if we can get the print of lots of X's after this one, after the error.

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All right.

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So when we try to run it, you see the exact printout did not occur because it was not executed this

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year or has blocked the running of the code.

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So basically, what we need to do now is what we discussed in assignments and assignments.

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Assignment number seven, just to mark up this line and then heat up control and backslash together.

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And you see this was edited and this one is commented out of the code.

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When we run it right now, we can see the Xs printed up.

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All right.

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And now let's go after the last assignment, which is.

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And the value.

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All federal mail to the cars.

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List, and when we want to add some items to the list, we just do the following, we just do the cars,

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declare the we call out the list and then use that.

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And we have actions here.

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So that's just the action.

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Bend it.

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And inside, because we have a string that supply quotation marks and add alpha.

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ReMail and this action adds a value to the list as the last item.

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It adds another index to the list.

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All right.

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So let's try to print it out.

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Glassless, printed after the hour of.

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All right, so let's add the cast list.

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So basically what happened is we had the cast list.

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Declared here, and it had only BMW, Toyota, Tesla and Kia, and then right here we have added another

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item to the list.

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So since this point and on so since this dot, since this moment and so on down the road, once we print

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the cars, it will be an updated list.

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All right.

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It's an updated list.

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And if we try to print it right here where the courser is right now, right here, it will be printed

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out without the alpha male because it hasn't been updated yet.

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OK, so that's casting.

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And you know what, that's out here after adding.

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We already have the after, all right, and that's the here and now the president, because I want to

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show you what what I just talked about cars list before at the of.

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So, all right, so that's the plus here, gas the cars.

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OK, so let's try to print it out.

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And there you have it, so cast list before adding Alfa Romeo, all right, which we try to print it

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right here before we apply the append action does not have Alfa Romeo.

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Once we used the append action, once we tried to bring the updated list, we can see Alfa Romeo added

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right here.

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So we're complete.

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We have completed the basics practice part of this again, don't be worry about if you did not succeed

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the last assignment, because we haven't covered it yet in the material, we will start covering this

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advanced lecture and the next video.

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So don't worry about it.

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And that's about it.

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You guys see you and the next video.