Async `requests` in Python : Do async I/O on a blocking object

Readul Hasan Chayan [Heemayl] — Wed, 27 Feb 2019 15:35:41 GMT

After the introduction of the send method of generators in Python 2.5, it was possible to send values into generators, essentially making them a two-way object. This leads to the possibility of single-threaded coroutine-based co-operative multitasking. Before 3.5, one could create a coroutine by the asyncio.coroutine (or types.coroutine) decorator, and pause a coroutine (when doing I/O) by using yield from which basically is a syntactic sugar for yield-ing values from another generator (using a for loop, for example).

In Python 3.5, the async-await keywords were introduced to support the Async operations natively, with:

The async keyword replaces the need for an explicit decorator to create a coroutine
The await is just a syntactic sugar for yield from

Readul Hasan Chayan [Heemayl] (Posts about async-await)

Async `requests` in Python : Do async I/O on a blocking object