Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics Functions and Looping For Loops

It looks like constants are not really a concept that appears in Python. I was wondering why is that?

In other languages, such as Java, you can create constants (values that do not change after assignment). I'm wondering why Python does not really have this concept and how do Python developers deal with this if they have a value they don't want to be modified?

1 Answer

Steven Parker
Steven Parker
231,110 Points

There's a programming convention (see the PEP 8 Style Guide) that constants should have all upper-case or MACRO_CASE names. That makes it easy to remember not to assign them again.

Another common practice is to locate all constants in a separate module.