Python 2 may be reaching end of life, but old Python 2 code will remain around for years to come. Written by Liam Tung, Contributing Writer Nov. 15, 2019 at 6:26 a.m. PT ...

Although Python code is almost always fast enough for the task, sometimes it isn’t. In those cases, you need to find out where and why it lags, and do something about it.

Python can also be used to drive code-generation systems, ... and shortly before Python 2 reached its end-of-life, all the most popular libraries had become Python 3-compatible.

With 35 million lines of Python code, the Athena trading platform is at the core of JPMorgan's business operations. A late start to migrating to Python 3 could create a security risk.

Luckily being compatible with Python 3 doesn’t mean replacing code wholesale, with it being possible to modify Python 2.6 code onwards to a form that is also compatible with a Python 3 interpreter.

Learn how to code with the best Python courses available, helping you unlock new job opportunities with the in-demand skill. Shelby Brown (she/her/hers) is an editor for CNET's services team. She ...