Advanced Python Programming

Improvements from Python 3.7

As of 2018, Python 3.7 has just come out, with several major new features, such as data classes, guaranteed ordered dictionaries, better timing precision, and so on. Asynchronous programming and the asyncio module received a number of important improvements.

First of all, async and await are now officially reserved keywords in Python. While we have been calling them keywords, Python did not, in fact, treat these words as reserved keywords, up until now. This means that neither async nor await can be used to name variables or functions in a Python program. If you are using Python 3.7, fire up a Python interpreter and try to use these keywords for variable or function names, and you should receive the following ...