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Hello and welcome to this new section of the course. In this section you're going to learn how to build

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graphical user interfaces with Python.

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And specifically are we are going to use the Tkinter library for that.

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So in this section you're not going to build any real world program. I'll introduce you to the Tkinter library.

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And of course to build a graphical user interface a small program that can get you started with Tkinter.

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And then in the next section,

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so once we are done with this section, in the next section you're going to learn how to interact with

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databases with Python.

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So we'll be using Python as a wrapper of SQL code so that we can store data in a database, query data

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delete and so on and so forth.

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So that was the section after this one.

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And then in the third section after this two sections we are going to build a real world program and

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that the program is this one here.

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So I called it bookstore.

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And what this does is it allows you to store book information in a database.

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This is a graphical user interface.

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So this program is made in two parts.

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You have the graphical user interface which are this buttons here which are called widgets and this was built with Tkinter.

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And then you have the backhand which consists of code that communicates with

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the database.

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So for example if we press the view all bottom we are  quering the database to load all the books for us.

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So we have the title.

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So if you press one of them you get the title here, the author and the year of the book and also the book identification

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number which is called ISPN. You can also search for an entry.

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So if you want to search for an author you'd write the author name in here and press search.

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And if you want to add an entry you would just type that in.

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And yes something like that.

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Add entry.

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And if load them again your entry should be here.

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So this is the program we're going to build two sections after this one.

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So let me close this one here and in the next lecture I'll introduce you to the Tkinter library.

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So we'll be building some simple interfaces with some widgets.

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See you in the next lecture.