The Twisted project is probably one of the oldest libraries that supports asynchronous programming in Python. It has been used by many programmers to develop a variety of applications. It supports many network protocols and can be used for many different types of network programming. In fact, asyncio was heavily inspired by Twisted. The expertise of several Twisted developers had been incorporated in asyncio. Soon, there will be a version of Twisted that is based on asyncio.
This tables shows equivalent concepts in Twisted and asyncio.
| Twisted | asyncio |
|---|---|
Deferred |
asyncio.Future |
deferToThread(func) |
loop.run_in_executor(None, func) |
@inlineCallbacks |
async def |
reactor.run() |
loop.run_forever() |
This small example shows two equivalent programs, one implemented in Twisted and one in asyncio.
| Twisted | asyncio |
|---|---|
Basic Twisted example using deferred: .. literalinclude:: examples/twisted_deferred.py |
Similar example written using asyncio: .. literalinclude:: examples/asyncio_deferred.py |