{"id":10134,"date":"2021-06-23T05:59:59","date_gmt":"2021-06-23T00:29:59","guid":{"rendered":"https:\/\/www.konstantinfo.com\/blog\/?p=10134"},"modified":"2024-04-11T16:12:06","modified_gmt":"2024-04-11T10:42:06","slug":"python-3-10-whats-new","status":"publish","type":"post","link":"https:\/\/www.konstantinfo.com\/konstant-blog\/python-3-10-whats-new\/","title":{"rendered":"Python 3.10: What\u2019s New?"},"content":{"rendered":"

As of June 2021, Python 3.9 is the latest, and 3.10.0 b2 is coming up next. It is in beta testing enabling a larger audience to check the features and work upon bug fixes. New changes in Python 3.10 are not revolutionary but good to have. Let\u2019s take a look:<\/p>\n

What\u2019s new in Python 3.10?<\/h2>\n

Structural pattern matching<\/strong> – Python makes use of structural pattern making covering up for switch\/case-like syntax. It enables matching up for a set of values to be usable across various scenarios.<\/p>\n

\"structural<\/p>\n

Precise Error Reporting<\/strong> \u2013 Python 3.10 goes along with the new parser, which is faster, robust, and easier for the Python team to maintain. It makes it easier to develop, generate syntax errors, and showcase relevant error messages.<\/p>\n

\"precise<\/p>\n

Parameter specification variables<\/strong> \u2013 Python’s new syntax lets you describe the module and the callable (function). Information propagation across callable is an issue, which makes annotation of function decorators unmanageable.<\/p>\n

‘typing.ParamSpec’ and ‘typing.Concatenate’ make it easy to annotate callables with more abstract type definition information.<\/p>\n

\"parameter<\/p>\n

You cannot pass every possible detail with the linter – (1) What types should you ‘pass’ to the functions that the decorator processes etc. The linter cannot catch the invalid types. To make it work with a new parameter specification variable syntax:<\/p>\n

\"new<\/p>\n

ParamSpec indicates the positional and keyword arguments. Concatenate depicts how ‘arguments’ are added or removed with decorators.<\/p>\n

Better Context Managers \u2013 <\/strong>Python 3.10 enables enclosing parenthesis for continuation across multiple text lines in context managers. It allows you to manage multiple files in a much more organized manner.<\/p>\n

More Changes in Python 3.10<\/h2>\n