Python epoll operation not permitted

Describes the cause and action for error messages.

Error Message(English):
epoll operation not permitted



Why does work with disk files but not epoll ...・・・

PermissionError: [Errno 1] Operation not permitted

What File Descriptor object does Python AsyncIO's loop ...・・・

python eventlet fabric gives IOError: [Errno 1] Operation not ...・・・

epoll_ctl : Operation not permitted error - c program

16.1. select ? Waiting for I/O completion ? Python 2.7.16rc1 ...

Issue 27759: selectors incorrectly retain invalid file descriptors ...

Issue 35517: selector.EpollSelector: add new ...

Issue 21998: asyncio: support fork

Issue 19876: selectors (and asyncio?): document ...


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