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Hello and welcome.

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We are going to be creating a wheat conversion tool that will convert the feet to meters.

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This is going to be a three part video project so we'll start in part 1.

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It's always a good idea to try and design or sketch out what you want your application to look like

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before you actually go ahead and build it.

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So this is a rough sketch I've made.

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So the application is going to have a title which is going to say feet or meters it's going to have

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an input box where you enter the value in feet and then you press calculate button it would display

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the equivalent in meters.

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So I will be using the python Idol for this project.

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So to access the idol you click on your programs menu wherever your pipe on folder is you click on it

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and double click on the Python idol.

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And that would give you access to the shell.

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Once you've got the shell open we need to open a new file click click on new file.

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So this file here is where we'll create our project all the code will write or write it inside here.

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So the first thing to do is to save this file as a python file so you do save as it already knows it's

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going to be a python file so we just need to give it a name.

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So I'm going to call it F 2 meters.

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So feel free to call yours wherever you like and and save it in whatever location you want.

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I'm going to click on desktop and save mine to the desktop.

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So anything I create here now would become a python python file for this project.

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I want to use a couple of Python modules.

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So before you can use the modules in Python you have to import them.

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So I'm going to import it using the word from space followed by the name of the module is called T counter

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space followed by the word import space and then Asterix and the second module I'm going to import is

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called T Kent as well so take into space import space t t k so these two lines basically tells Python

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that our program needs these two modules.

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The first module is called take into this is the standard binding to Tiki which when load it also causes

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the existing T.K. library on your system to be loaded.

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So if you've got two kids on your system of course need to be loaded.

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The second module which is K is Python binding to the new are themed widgets that were added in TKD

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version eight point five.

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So the difference between the two is that with the teak into the first one you can configure the widgets

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you know almost as you like.

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Whereas the second one the TDK is more locked down but it's more professional.

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OK.

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So if you don't want if you want a professional looking widget or theme and you don't want to configure

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it much then Titi case your option but if you want to have total control then use the widgets within

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the tea counter module.

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Notice that we've imported everything from the teak into our module so so that we can call the T counter

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functions and every other thing that relating to that module so you can call them without prefix in

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them.

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OK.

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Which is the standard t keen to practice however because we've imported TDK itself.

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That means we'll need to prefix anything inside that t t care module.

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So if we're using like an entry entry module really we need to specify that.

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So if the entry entry we get is a t t k 1.

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So you need to specify Tiki dot entry you need that in order to invoke the function inside the T T K

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module.

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Sometimes you need both modules.

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Other times you need just the one depending on the context to save time.

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I've added some lines of code here.

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Okay so I've added these lines of code here.

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We've got the root cause to T.K..

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Basically what we're doing here we are setting up the main window for the application.

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And here the root not title we've given it a title with calling it feet to meet.

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So this will be the title for the application and then created a frame we get.

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Okay.

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This is a frame widget which will hold all the content of our user interface and also police will pleased

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that inside the main window we defined the main window here.

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So this frame will be placed inside the main window.

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This bit here the column configure this be here.

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What that what that does.

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It tells Tiki that if the main window is resized the frame should expand to take up the extra space.

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OK.

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That's what this line does.

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Rule number go row here.

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The the rule configured.

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Basically what that will do it will configure the row so the random number basically is the rule into

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which you want to insert your which and the default counting starts from zero.

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So the default is in the next higher and higher value for the.

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On occupied rope.

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Notice we've got

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the sticky option here.

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This sticky here.

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Basically this option determines how to distribute in the extra space within the cell.

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That is not taken up by the widget.

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If you do not provide a sticky attribute their deferred default behavior basically will is to center

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the widget in the cell.

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You can position the widget in a corner of the cell by using the sticky word and he has certain values

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so these values refers to the way you can stick make the widget stick in the cell and W refers to refers

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to not from bottom to left.

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OK so if you're doing w sorry it's top left and W refers to top left you want it to be position on top

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left and then e e refers to e will be the right center and then it will stretch the widget in a vertical

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position so that's what these values are.

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They are geometric values and these values are all part of the agreed method.

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So I'm going to end this lecture here and we will carry on in part 2.

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So say in part 2.

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Thanks for watching.