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Python for Beginners - Learn Python in 1 Hour
Programming with Mosh
Iphone or iPad you need to install a couple of other things first so you go to the App Store and
search for Pycharm. Then in the App Store click on the install button. Now. Once Pycharm is
installed, you can open it up by clicking on this icon. Here in your downloads folder. You should
also have a.py file. So let's open that up now. The first thing you 're going to do is create a new
project so let's do that by clicking on this green plus sign here in your project explorer window
and type in Python. This is the name of your project. Now let's choose a location for your project
so we're going to choose a folder on our computer called projects and then click on the create
Button Now let's change some settings inside of Pycharm. So first thing you 're going to. To
want to do is change the language of your project to Python, So inside of pycharm. Go to File >
Settings > Project Settings and in the Languages section change Python to the language of your
project. Now next thing you 're going to want to do is set up your project folder so inside of
pycharm go to File > Settings > Project Structure and in the Project Folder section click on the
Browse button and then select the folder where you want your project files to live so now Your
project is set up and ready to go all right let's start writing some code. We're going to start with
the simplest code possible and that's a hello world program. In Python. A Hello world program is
simply a program that prints out hello world so let's open up our.py file and enter this code here.
Here import sys [UNK] world!") all right so we've imported the Sys module and then we've
printed out [UNK] world!" now Let's save our file by clicking on this green button here in your
editor window and call it Hello.py now let's run our program by clicking on this green run button
here inside of pycharm and you'll see that our program has printed out [UNK] world!" all right
that's our first simple code block in Python now Let's take a look at some more code blocks in
Python. First thing we'll want to do is create a variable, so let's open up our hello.py file again
and enter this code def [UNK] [UNK] world!") all right so we've defined a function called say
—hello() and inside of say —hello() we're going to print out [UNK] world!" now let's save our file
once again say we want to declare a variable called price. We would type price and then after
we type the name of the variable. We would put a colon and then the value of that variable. So
in this case, the value of this variable will be 12.99. So we can use this variable anywhere inside
our Python code now let's say we want to print the value of this variable. We can do that by
simply writing print price and then after that we would put a period and then the value of the
variable. So in this case the code would print out 12.99 alright. Now let 's say we wanted to
change the value of this variable. We can do that by simply typing new value for price and then
after that we would type a colon and then the new value of the variable. So in this case the code
would print out 13.00 alright. Now let's say we wanted to delete this variable. We can do that by
simply typing delete price and then after that we would type a period and then hit enter so In this
case, the code would delete the variable called price Alright. Now let's talk about lists. Let's say
we have a list of items and we want to display. each item in turn on our application window so to
do that we need to use a for loop so to declare a for loop. We would type for item in list, and
then after that we would type parenthesis, then the list item and then after that hit enter so In
this case, the code would run for each item in the list called list and then it would go inside the
parentheses and it would assign the item inside those parentheses to the variable called item.
So in this case, the code would print out apple Banana cherry pineapple, so you can see how
this works if you wanted to change what was inside those parentheses. You could do that by
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