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leftovers

#6: Command-line execution

Throughout the 10½ chapters of this book, you’ve consistently
executed your code from within the IDLE programming
environment. This has been great while developing and working
on your code, but it’s probably not how you want your users to run
your programs. It turns out there’s more than one way to do it
when it comes to running your code. The method available to you
(and your users) will vary depending on the operating system you’re
using.
Your operating system might have a file association already in place
that allows you to double-click on a Python program and have On Windows, enter the
it execute for you. If this is the case, feel free to double-click to “C:\Python31\python.exe”
your heart’s content. If not, here’s how to start Python from the command together with the
command line on the “big 3” operating systems. Let’s assume the name of the program you
program you’re running is called coffee_pos.py: want to execute.

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\hfprog> C:\Python31\python.exe coffee_pos.py
1. DONUT
2. LATTE
3. FILTER
4. MUFFIN
5. Quit
Choose an option: █

File Edit Window Help Mac OS X and Linux

$ python3 coffee_pos.py

1. DONUT Simply enter
2. LATTE “python3” together
3. FILTER
4. MUFFIN with the name of
5. Quit the program you
Choose an option: █ want to run on the
Mac OS X or Linux
command line.

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