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Python Learning
Python Learning! Wow that's a classic! You might be able to make a version of Python Learning when we are done!
Let's look at our Python file. Inside we see a function main
that will contain all of your commands as you create the dice roller:
def main():
#print('You rolled a die')
Below that, you'll see an if
statement calling that function:
if __name__== "__main__":
main()
By doing this, the function main
will run whenever you run the Python script. As you develop the dice roller, be sure to only manipulate the code within the main
function; nothing else will need to be changed.
Right now the only line in our main
function is a print()
function:#print('You rolled a die')
. This will print whatever is inside the parenthesis. There's a #
in front of it right now, which means it's a comment. Uncomment it by removing the #
to let Python read it, and save the file.
You can run the Python script by typing python dice_roller.py
in a terminal, provided you're in the correct directory. If not, run the script by typing python /path/to/directory/dice_roller.py
, where /path/to/directory
is replaced with the path to the file on your own system.
You'll see the following nifty, albeit not very useful line printed out in your terminal: "You've rolled a die". We'll make it more informative in a bit, but first, let's push those changes to GitHub.
Whenever you change files in your repository, you'll want to add
and commit
the file, which allows you to add a message detailing what you changed. Then you can push
the updated version, along with your comments, to GitHub.
Let's do those three steps:
git add dice_roller.py
git commit -m "I uncommented line 2"
git push
Great!
You will be pushing code to your own repository several times as a reference.
Welcome to this (mildly) advanced Python tutorial! Today we'll be writing a script to mimic a common real-world action. If you've ever played a tabletop game, you know there are many dice rolls to make. This tutorial will show how to harness a combination of Python skills to make an automatic dice roller. But first, before we do that, we'll need to get a few things set up on your system.
Having Python
First, in order to do anything in Python, you need to have Python on your computer! Let's make sure it's installed. Open up a terminal and type `python -V. There are a few possible things it can output here:
If the output begins with
Python 3
, you're good to go! This tutorial was tested on a system running Python 3.7.4, but it should be compatible with any version of Python 3.If the output begins with
Python 2
, you have Python, but it's an outdated version. You'll need to download Python 3 to follow this tutorial. Go to the Python website to download it.If you get a command that reads something similar to
command not found
, no version of Python is on your system. You'll need to go to the Python website to download it.Having Git
We also need to make sure Git is installed on your system. Check that by typing
git --version
in a terminal. If it outputs agit version
you're good to go! If not, go to the Git website to download it.Cloning this Repository
Now that we have Git, we can clone the repository containing the building block of the code you'll be writing. In the terminal type
git clone https://github.com/ppmash/intermediate-python-course
Inside the repo you'll see two files:
README.md
: a markdown file that details some info about the projectdice-roller.py
: a Python file containing the code you'll be building off ofNow that we have everything we need, we can actually begin writing our dice roller! Let's begin!
Leave a comment with your favorite dice-rolling game to continue.