Shulou(Shulou.com)06/03 Report--

Python is a cross-platform computer programming language. It is an object-oriented dynamically typed language originally designed for writing automated scripts (shell). With the continuous update of versions and the addition of new features of the language, it is more and more used for independent, large-scale project development.

Python 3.8.0 has been officially released. Here are the main updates.

PEP 572, assignment expression

PEP 570, position parameters only

PEP 587, Python initialization configuration (improved embedding)

PEP 590,Quick call Protocol for Vectorcall:CPython

PEP 578Runtime audit hook

PEP 574, Pickle Protocol 5 with out-of-Band data

Typing related: PEP 591 PEP 586

Parallel file system cache, bytecode for compilation

Debug version and release version share ABI

F string supports a convenient = specifier for debugging

Continue is now in the finally: block

On Windows, the default asynchronous event loop is now ProactorEventLoop

On macOS, the spawn start method is now used in multiprocessing by default

Now, multiprocessing can use shared memory segments

Typed_ast merge back to CPython

LOAD_GLOBAL is now 40% faster.

Pickle now uses protocol 4 by default, which improves performance

Https://article.pchome.net/content-2103559.html

Http://www.51cto.com/it/news/2019/1111/16471.html

Https://www.csdn.net/article/a/2019-11-11/15983970

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.