Script.md

Running with Script

Overview

We will now run a python script from a file.

Step 1: Open helloworld.py in your favorite text editor.

Start your favorite programmer's text editor. This will depend on your platform:

Windows:

• pycharm (Recommended)
• Notepad++ (don't use notepad.exe)
• Sublime Text

Mac:

• pycharm (Recommended)
• Textedit (included with macOS)
• Sublime Text

Linux:

• pycharm (Recommended)
• Vscode (included with Lab environment)
• vi/vim
• nano
• Sublime Text

Create a file called helloworld.py and open it with the editor of your choice.

Step 2: Start Typing Python Code

Type the following code into your text editor

print("Hello world!")

a = 10
b = 3.1
c = "hello world"

Save your text editor code.

Step 3: Run your program from the command line

python3 helloworld.py

Which should print out the following

Hello world!

Step 3: Evaluate the result of your variables

Note that simply typing variable names doesn't actually print anything here.

Why not?

We can explicitly print things:

print(a)
print(b)

=> TRY re-running to see the results.

Try some arithmetic operations with your variables, like this:

a + b
a * b
a / b