Python 3.9

Python 3.9:

Python 3.9 is a major release of the Python programming language that was released on October 5, 2020. It introduced several new features, improvements, and optimizations compared to the previous versions.

Here are some notable features of Python 3.9:

Dictionary Merge and Update Operators: Python 3.9 introduced the merge (|) and update (|=) operators for dictionaries, allowing you to combine or update dictionaries using a concise syntax.

Type Hinting Improvements: Python 3.9 introduced new syntax and improvements to type hinting, including support for the | operator in type hints (to represent a union of types), and the Literal type to represent literal values.

New String Methods: Python 3.9 introduced two new string methods, removeprefix() and removesuffix(), which allow you to remove a prefix or suffix from a string, respectively.

Flexible Decorators: Python 3.9 introduced support for using decorators without parentheses, making it more flexible and consistent with other callable syntax.

Improved Time Zone Support: Python 3.9 added better support for working with time zones, including the introduction of a new zoneinfo module based on the IANA time zone database.

Performance Improvements: Python 3.9 included various performance improvements, such as faster startup times, optimized built-in functions, and better dictionary performance.

These are just a few highlights of the new features and improvements introduced in Python 3.9. It’s worth noting that Python 3.9 is backward compatible with earlier Python 3.x versions, but some new features may not be available in older versions. It’s always a good idea to check the official Python documentation for more details and specific changes in each release.