Python 3.7 Released With C API For Thread-Local Storage, Data Classes, Context Variables
In Summary : Python 3.7 is now available as the latest major release to Python 3 with new features, performance optimizations, and other e...
https://updatesinfosec.blogspot.com/2018/06/python-37-released-with-c-api-for.html

Python 3.7 is now available as the latest major release to Python 3 with new features, performance optimizations, and other enhancements.
Python 3.7.0 is bringing a new C API for thread-local storage, a new UTF-8 mode, a built-in break-point function for use with the debugger, Data Classes being added to the standard library, core support for typing module and generic types, time functions with nanosecond precision, context variables, documentation updates, various optimizations, and more. [...]
kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=news_item&px=Python-3.7-Released