How Big Is Python 3.9

Python Programming

Python 3.9, the latest version of the Python programming language, is a significant update that brings a range of new features and improvements. As a Python developer myself, I have eagerly awaited the release of Python 3.9 and have been impressed with its capabilities.

A Major Update

Python 3.9 is not just a minor release; it is a major update that introduces several new features and enhancements. One of the standout features of Python 3.9 is the introduction of the zoneinfo module, which provides a more modern and comprehensive implementation of time zone support. This is particularly useful for applications that deal with time-related calculations and operations.

In addition to the zoneinfo module, Python 3.9 also introduces the or operator for dictionaries, which allows for concise and expressive code when dealing with dictionary lookups. This feature, along with other improvements such as improved type hinting and performance enhancements, makes Python 3.9 a compelling upgrade for Python developers.

Improved Performance

Python 3.9 brings several performance improvements that make it even faster and more efficient. One of the notable enhancements is the improved dictionary implementation, known as “compact dictionaries.” This optimization reduces memory usage and improves performance for dictionary operations in Python.

Furthermore, Python 3.9 includes performance improvements in the form of a faster parser and faster attribute access. These enhancements result in improved overall performance for Python applications, making them run more efficiently.

Personal Commentary

As someone who has been using Python for several years, I am excited about the improvements and new features introduced in Python 3.9. The introduction of the zoneinfo module will greatly simplify time-related operations in my applications, saving me both time and effort.

The performance improvements in Python 3.9 are also welcome news. Faster attribute access and a more efficient dictionary implementation will undoubtedly enhance the performance of my Python programs. It’s always great to see the Python community working tirelessly to make the language faster and more efficient.


Python 3.9 is a significant update that brings a range of new features and improvements to the Python programming language. From the introduction of the zoneinfo module to the performance enhancements, Python 3.9 offers developers new capabilities and improved efficiency. As a Python developer, I am thrilled with the advancements in Python 3.9 and look forward to utilizing its features in my future projects.