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The main problem is that many Python libraries come in only sync flavor and using them together with asyncio is a pain. NodeJS libraries are almost all standar

• heavyset_go 6y ago
  Seems pretty painless to me: $ python3 -m asyncio >>> from requests import get >>> url = 'https://example.com' >>> response = await asyncio.to_thread(get, url) A lot of Python libraries now offer async APIs, have async support on their short term roadmaps, or other async projects have replaced them.
  • dayjah 6y ago
    oh neat! I did not know about asyncio.to_thread; I've been using the longer form thread executor pattern.
    • simonw 6y ago
      I hadn't seen that either - looks like it's new in Python 3.9: https://docs.python.org/3/library/asyncio-task.html#asyncio.to_thread https://docs.python.org/3/library/asyncio-task.html#asyncio....
      • heavyset_go 6y ago
        And if you aren't using 3.9, the anyio package has a run_async() function in its to_thread module[1] that works the same way as asyncio's to_thread() coroutine function, and the anyio solution is compatible with both asyncio and trio. [1] https://anyio.readthedocs.io/en/stable/threads.html https://anyio.readthedocs.io/en/stable/threads.html