Python’s ChainMap: Manage Multiple Contexts Effectively
Sometimes when you’re working with several different dictionaries, you need to group and manage them as a single one. In other situations, you can have multiple dictionaries representing different scopes or contexts and need to handle them as a single dictionary that allows you to access the underlying data following a given order or priority. In those cases, you can take advantage of Python’s ChainMap
from the collections
module.
ChainMap
groups multiple dictionaries and mappings in a single, updatable view with dictionary-like behavior. Additionally, ChainMap
provides features that allow you to efficiently manage various dictionaries, define key lookup priorities, and more.
In this tutorial, you’ll learn how to:
- Create
ChainMap
instances in your Python programs - Explore the