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Hi, everyone, and welcome.

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OK, so let's try to resolve Dictionary's practice assignments and let me just open by charm.

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All right.

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So once I'm open, let's create a new file.

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Call it.

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Collection's dictionary practice basics and here is well.

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Yeah, so are we good to go?

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So, first of all, let's create a dictionary about Alex.

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So the dictionary goes as following square brackets and then we have age, Alix's is 32 years old.

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And.

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Married.

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Yes, by the way, we can also put boolean variable here as following, but the assignments said to

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say to set a string of yes and last one is kids, which is which has the value of three.

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OK, so this was the first thing you needed to do.

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Let's print it out.

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This is Simon Nimo, number one.

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This is Alix's.

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Dictionary.

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And plus casting and Alex, yep, so it's printed out, see that we're fine, all right.

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And so we have printed out the dictionary successfully.

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Great.

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So let's head over to the next assignment.

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And the assignment said that you need to extract.

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Values of the dictionary.

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Into variables.

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Correct.

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So let's create reprints, yeah.

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It's great, three prints, copy it and then paste and paste and inside those prints, let's state that

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we are in assignment number two and we're going to print off page value.

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Correct.

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So looking at the dictionary.

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All right.

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So we have three cells here.

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This is the first one second and third.

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And again, I'm mentioning mentioning that you do not have indexes for those cells.

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I'm just counting them for myself and for you guys to understand that we are discussing the same thing.

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So we want to print the value, uh, print the value of age.

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All right.

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And what you were asked to do in this assignment before the prints is to create three variables and

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put the values of the dictionary inside those variables.

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So we have the H.

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Yeah.

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And how do we extract a value?

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We just mentioned the dictionary, then square brackets and then put the key inside.

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Yeah.

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So again, we're doing the.

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Marriage status.

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And then we put the dictionary square brackets.

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And put the key inside.

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Then we have kids.

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Or to be more exact number of kids.

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Alex and kids, yeah, so this is what we have learned in the previous video, that this is how you

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can assign variables into, uh, like to sign to vet to a variable a, uh, value of a dictionary.

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And then what we need to do is print the age of the value.

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Print of age value.

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Yeah, so we do casting and we put Asian side, Asian side.

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All right.

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So let's do a quick example for the first one that we will know that we're in the right way.

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Right, so we have extracted successfully the aged value.

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All right, so first of all, we created a new new variable, which is age, and then we put an equals

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mark that this value we want to put inside the age variable.

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And what do we have here?

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Here we have the dictionary mentioning square brackets, and then inside we put the key and these key

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belong value will be extracted by this action.

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So basically, it's the same thing as stating H equals 32.

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All right.

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So this one's output is 32.

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It extracts the value of the key that we mentioned.

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All right.

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Oh, sorry.

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All right, so then we have.

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We also need to do the print off of the other variables or print off.

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Marriage status.

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Value, yeah.

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SDR, by the way, anybody knows.

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Do we need casting here or not?

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And I'm asking this because let's have a quick look at the value of the married keys is a string.

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So do we need to put casting here?

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So let's find out.

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Yeah, and in the last one.

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We have to, yeah.

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Print off.

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No.

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Yeah, we like this number of kids, yeah, so value.

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And then we pulled the string.

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This is indeed a, uh, string uh, yeah, sorry, it's an integer.

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So this is an integer.

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So we definitely need casting because we have a string here.

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And if we don't do casting, we have two types of string and is let's print it.

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And the question mark, I just want to remind you, want to see what happens here as we didn't do casting.

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Yes, so everything worked just fine, and as we just discussed, you do not have to put casting on

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marital status, and the reason is because when we pull out the value of this key, which is the value.

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Yes.

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So it is already a string.

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So we don't need to, uh, we don't need to cast a string into a string.

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This is this is not logical.

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So we don't need to put the casting here.

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Yep, so this was the second assignment and the third assignment was.

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Bonus one, yeah, and find a way to change.

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Dictionary value.

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Online, yeah, so we had like a phrase that I asked you to to search by.

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So the phrase was Python update value of dictionary.

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So just randomly, I'm going to not randomly and just going to speak.

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Always the first results here, as long as they're not promoted.

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All right.

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So let's go to programs, by the way.

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I just want to say that all information that we take from that program is dot com is rights reserved

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to program is all right.

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And now we will see here from the top.

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We already discussed it in the previous video that we just need to mention.

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The dictionary then used the DOT update action key.

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And here, inside, here, inside, you see in the square brackets the phrase other and we not you can't

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quite sure understand what is on the other.

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So let's go a bit down to see an example.

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And isn't the as we saw in the previous video, so we have seen that we have a dictionary, one which

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is the best one, and we have the D D one, which is the helper dictionary.

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And here we have only one key and one value.

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So the key here is to correct and the key here is to as well.

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So once we we call out the base dictionary D and we hit the update Key Action Action Key.

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Once we put inside the helper dictionary, which is the one, it will take this key and we'll take this

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value and it will search where in the base dictionary we have the same key.

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OK, so we have here the same key.

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So it will replace the value of the helper instead of what we have in the base dictionary.

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So this is what we're going to do now.

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OK.

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So we have assignment number four, which was the following change.

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Of age.

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Kee.

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Change of value, let's say, sell value from 32 to 33, correct?

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So what we're going to do now is, first of all, to create an age.

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Helper.

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Dictionary and we will stay there, the same key that we have in the original dictionary, which is

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age, and we will put the the the goal value, which is 33 and right after we will mention the base

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dictionary, then dot the action key and inside we will just insert the helper dictionary as following.

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So what's going to happen now is once we will apply the update of, uh, upon the dictionary with the

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help of the helper dictionary.

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So the code will take this key, go to the go to the base dictionary, which is this will find the same

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key here and it will replace this value with the new one.

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So let's try to print and see that we're correct.

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All right, so now we're going to print.

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The Alex dictionary one more time and we're expecting to see a 33 value inside the sale of H.

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Yes, so this actually happened, we have the value 32 and once we use the Help dictionary to replace

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the value, it is now 33.

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Great.

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

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So in the following assignment, we were asked to change the number of kids as Alex has a new kid in

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the family.

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Joining the family may be, yeah, and what are we going to do as all as well?

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A creative kid's helper dictionary.

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Yeah, put the key kids inside and put the value for which is what we want to put inside the cell.

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Right now we have the value three.

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Yeah.

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So now it's not kids, it's kids.

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Yeah, and now we're just going to do the same thing we did before, I like that update and then put

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the Kids Helper dictionary inside.

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And again, let's just copy this one.

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And based here just before running, I want to do a small thing, I just want to mention here a change

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of age and here it is, change of.

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Kids, no.

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Number of kids, yeah, and let's print it and see what happens.

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Oh, no.

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Oh, no.

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Something happened here.

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Oh, I see.

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I see.

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So we have like a Syntex out here.

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We need to put this a sign right here.

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Let's try to run it.

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Yeah.

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Yeah.

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So the value changed from three to four, as we expected.

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Great.

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Great guy.

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So we're heading in the right way.

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Heading in the right way.

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Now let's try to do the following thing as we already studied.

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And let's just try to print all of the values and keys, uh, of the dictionary.

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Yeah, but right here, I just want to maintain order or put the assignment number.

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Yeah, so right now we are heading to the sixth one and in the sixth one, we would like to print out

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all the keys.

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Of Ilex dictionary, and we will do it in the following way.

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And we can do it using, first of all, casting and yeah, this is unnecessary and will put Alex here

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and then we put that keys.

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Yeah, we have seen it in the previous lectures.

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And also let's copy this one and why I'll copy.

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You know what?

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Let's not copy it, because I want you to see maybe you can get some new information while I'm explaining

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and showing you the way.

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All right.

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So the keys and now we need to print out values of Alex Dictionary.

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And here we are in assignment number seven, print all values of Ilex Dictionary.

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Yeah, it's pretty much the same.

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Yeah.

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Quite frankly, it's pretty much the same.

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So here it's Alex Dot values and printing it out.

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Yeah.

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Not forgetting the plus here.

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Oh OK.

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So let's print it.

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Yep.

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All right, so we have alkies print it out and let's just verify we have age married and kids and we

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have old values printed out, which is age 33.

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Yes.

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And number of kids, which is now four.

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And that's about this part.

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So I just want to summarize what we have just did in this video.

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So we have we have resolved all the practice, basic assignments, and we are now familiar with dictionaries.

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We know how to assign and to a certain variable a value of a dictionary.

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We know how to change values inside the dictionary using a helper dictionary.

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And we also know how to print out the keys and values of a dictionary.

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And that's about this topic.

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In the next video, we'll start discussing the advanced part of dictionaries there.

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You would learn how to do some advanced manipulation on dictionaries as copying a dictionary, deleting

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all its values and how how to create a nested dictionary.

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And following that, you will also encounter the practice of the advanced part as well.

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And this is, quite frankly, a really important topic as dictionaries are used worldwide and in very,

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very large scale.

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And personally, I also use dictionaries a lot in my automation projects.

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So it's a.