In programming, the term constant refers to names representing values that don’t change during a program’s execution. Constants are a fundamental concept in programming, and Python developers use them in many cases. However, Python doesn’t have a dedicated syntax for defining constants. In practice, Python constants are just variables that never change.
To prevent programmers from reassigning a name that’s supposed to hold a constant, the Python community has adopted a naming convention: use uppercase letters. For every Pythonista, it’s essential to know what constants are, as well as why and when to use them.
In this video course, you’ll learn how to:
- Properly define constants in Python
- Identify some built-in constants
- Use constants to improve your code’s readability, reusability, and maintainability
- Apply different approaches to organize and manage constants in a project
- Use several techniques to make constants strictly constant in Python
