For years, Python dictionaries were unordered data structures. This revealed the need for an ordered dictionary that helps in situations where the order of items is important. So Python developers created
OrderedDict, which was specially designed to keep its items ordered.
Python 3.6 introduced a new feature into regular dictionaries. Now they also remember the order of items. With this addition, most Python programmers wonder if they still need to consider using
In this video course, you learned:
- How to create and use
OrderedDictobjects in your code
- What the main differences are between
- What the pros and cons are of using
Now you’re in a better position to make an educated decision on whether to use
OrderedDict if your code needs an ordered dictionary.
In this course, you coded an example of how to implement a dictionary-based queue, which is a use case that shows that
OrderedDict can still be of value in your daily Python coding adventures.
To continue your learning or review foundational concepts, check out:
- Python Basics: Dictionaries
- Dictionaries in Python
- Custom Python Dictionaries: Inheriting From
- Sorting a Python Dictionary: Values, Keys, and More
- Python Dictionary Iteration: Advanced Tips & Tricks
- Python Stacks, Queues, and Priority Queues in Practice
- PEP 372 – Adding an ordered dictionary to
- Python documentation:
collections— Container datatypes
Congratulations, you made it to the end of the course! What’s your #1 takeaway or favorite thing you learned? How are you going to put your newfound skills to use? Leave a comment in the discussion section and let us know.