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Python Notes:
Today I want to show you the fundamentals of programming using Python
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To program
allows you to take maybe an idea that 's in your head , you can turn it into a
series of steps that the computer can understand and execute
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Python tends to be
right near the top of the lists of the most popular programming languages
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Python is a good general
purpose programming language
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To
get Python, head to the website python
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Right near the top of the page, you 'll see a button right
here for downloads
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Go
ahead and click on download and here it's kicked off the download process
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So the 1 + 2 , it interprets it and then it evaluates it
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To exit out of the Python terminal, we can click on the X symbol up
here or we can type in another function called exit
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Congratulations, you just wrote your first bit of source
code and you also ran it
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You have all sorts of IDEs that you can choose
from
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On Android, you have Android Studio
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It 's a product made by Microsoft , so of course I like it
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To get started, why do n't we open up the Hello World file
that we created previously
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In Notepad, we did n't get that in Notepad or Notepad
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This will make it a
lot easier as we start writing out our code
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I want to show you how we can start working with
operators to work with numbers
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Multiplication comes before addition, division,
multiplication and division
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With Python, I can use all of the standard operators
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Let 's say I want to calculate 5 / 2 , and here I 'll play and right down here I see
that's 2
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5
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This is also known as the floor
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Using white space can help make
your code more readable as you go through
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We now know some of the
basics of working with numbers and also strings
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Comments are valuable as you 're
writing code
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Next, we
're going to look at how you can use variables , and the easiest way to explain
a variable is to use this red bucket that I have here from my son