python theory

Creating Python Files and Variables
Python Files
Python files (or modules) are a way to organize and reuse code. They are simply text
files with a .py extension, and can be run from the command line or imported into other
Python programs.

Creating a Python File

To create a Python file, you'll need to:

1. Open a text editor (such as Sublime Text, Atom, or Notepad)
2. Write your Python code
3. Save the file with a .py extension

For example, you might create a file called hello.py with the following code:

print("Hello, world!")

To run the file, open a command prompt or terminal window, navigate to the directory
where the file is saved, and enter the name of the file (including the .py extension).

Importing a Python File

To import a Python file into another program, you'll need to use the import statement,
followed by the name of the file (without the .py extension). For example:

import hello

This will import the hello file, and you can access its functions and variables using the
dot notation.

Variables
Variables are used to store data in a Python program. You can think of them as labels
or names for values.

Creating a Variable

To create a variable, you'll need to use an assignment statement, such as:

name = "Alice"