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Now in the last lesson,

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we created our question class. In this lesson,

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we're going to be creating a question bank of question objects.

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Notice how we can create a question object by using the name of the class and

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then giving it some inputs for the question and the answer. Now,

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if we create a whole bunch of those and then put them into a list like this,

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then we can create a question bank of questions to use in our quiz.

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If you take a look inside the data.py file,

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you'll see that I've already included a whole bunch of questions inside here,

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and you can see it's got some text and it's got some answer.

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So the exact structure of this file is that it's got a whole bunch of

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dictionaries, 12 in total,

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and all of these dictionaries are saved inside a list

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and that list is called question_data. Now, when you first come onto this file

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you'll see some warnings, these little yellow squiggly lines.

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And the reason is because it would expect for proper formatting,

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each of these dictionaries should be indented inside the list. Now,

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in terms of actual functionality, this won't change anything.

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The indentation of the items in a list are not as important as the indentation

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in say a method or a for loop.

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But it's still better to get rid of all of these warnings.

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So what we're going to do is we're going to select everything inside this file,

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we're going to go to code and then auto-indent lines.

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And this you'll notice has now auto-indented

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all of the dictionaries inside the list.

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Now you'll still notice some red squiggly lines. So in this case,

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the reason is because the line is too long, it's greater than 120 characters.

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You can see that's where the cutoff is. So in PyCharm

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it's really easy to separate lines.

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If you just identify a good spot in that line, hit enter,

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and it will automatically add some quotation marks around it so that it still

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behaves the same way as before, but now it's on separate lines.

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And I'm going to do the same to line 8 as well.

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Now the final warning expect a new line at the end of the file,

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so it let's give it that.

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And the last thing that you'll notice here is that there's a squiggly line here

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under Backrub because that is a unknown word in the dictionary.

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So if you want to, you can actually save words into the dictionary

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to you get rid of all of these squiggly lines.

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This is actually a name of a company,

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so it's probably not going to be in the dictionary.

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But if you go ahead and put your cursor on it like this,

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you'll see a little light-bulb light up and you can go ahead and select save 

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'Backrub' to project-level dictionary,

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and that will get rid of all of your warnings and errors

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and you'll see a nice green check mark in the right corner.

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Now that we've done all of this formatting with the data,

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let's really examine it. What we have here is a list of dictionaries.

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Each of the dictionaries have the same key for the question text and the same

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key for the question answer.

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So what we need to do is we need to be able to bring this question data into the

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main.py file. But instead of having a list of dictionaries,

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we want a list of question objects.

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We know already that we can create a new question object by simply constructing

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one from the question and then giving it the required inputs.

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But in order to do this inside the main.py file,

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we, of course, have to import the question model and we'll also need to import the

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data.py. So from the question model

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I'm going to import the question class, and from the data file

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I'm going to import the question data.

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Now that you've got both the question data and the question class,

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your goal is to create the question bank.

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And once you're done,

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it should contain a list of question objects

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each being initialized with a question and an answer,

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and the data is going to come from these dictionaries from the question data.

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So you'll need to think about how you can loop through that question data in

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order to create this list of question objects.

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Pause the video and give that a go now.

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All right. So we know that we need to create this question bank

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which is going to be a list of question objects.

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So I'm going to start out just by creating an empty list

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and then I'm going to loop through each of the questions inside the question

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data. And for each of these questions,

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I'm going to create a variable, which we'll call a question_text

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and the question_text is going to come from those question dictionaries from

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here. And if we imagine

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we have one of these dictionaries and we want to get hold of the question_text,

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then we'll need to tap into the text key.

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So I'm going to put text inside here and I'm going to do the same thing for the

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answer.

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So this is going to be using the answer key that we see right here.

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So now if we're looping through the first one, we should have 'A slug's

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blood is green.' and 'True' for these two variables.

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So now I'm ready to create my new question,

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which is going to be created from the question class.

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And you can see that in the constructor, it's expecting two parameters;

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one is the q_text and another is the q_answer.

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We can set the q_text to this local variable called question_text,

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and we can set the answer to the question_answer. And of course,

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for simplicity sake,

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we can also get rid of the named parameters and have them just as the parameters

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like this.

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So now that we've created this new question object and saved it in the variable

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new_question, we're ready to add it into our question bank.

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So we can say a question_bank.append,

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and we'll append each of these new questions that we create in the for loop.

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So now if I go ahead and print this question bank,

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you'll see that when I hit run and select my main file,

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then it prints out a list denoted by the square brackets and inside the list

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you've got a whole bunch of question objects. And if you count,

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there's actually 12 in total,

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one for each of the dictionaries inside our question_data.

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So very often when you're getting data from the

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internet or from somewhere else, it'll likely be in a format

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that's very similar to this. What we're doing is we're converting each of these

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pieces of data which has a string key,

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which means it's very easy to make typos

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if we're using this in our code everywhere,

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and we're converting it into a object

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which now has all of that data in a very easy and foolproof way of accessing the

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text and the answer. And you'll notice here,

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if I actually write the wrong thing,

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then it's actually going to highlight to me

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this is not something that you can use. And if I start typing,

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I've also got the help of the auto-insert.

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Now that we've created our question bank of question objects, the next step is to

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actually get our quiz up and running.