最終更新:2021-07-30 (金) 17:14:42 (1000d)  

Python/async with
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構文 

  • async with EXPR as VAR:
    BLOCK
↑

等価 

  • mgr = (EXPR)
aexit = type(mgr).__aexit__
aenter = type(mgr).__aenter__(mgr)

VAR = await aenter
try:
    BLOCK
except:
    if not await aexit(mgr, *sys.exc_info()):
        raise
else:
    await aexit(mgr, None, None, None)
↑

関連

  • async for?



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