Hi glyph‍,

Thanks for your patient reply. I try to run that on Ubuntu 14 and all works 
find.
So I guess you are right.

Thanks,
Mark




------------------ Original ------------------
From:  "Glyph Lefkowitz";<gl...@twistedmatrix.com>;
Date:  Tue, Mar 3, 2015 03:38 AM
To:  "Twisted general discussion"<twisted-python@twistedmatrix.com>; 

Subject:  Re: [Twisted-Python]回复: 回复:  exceptions.ImportError: cannot import 
name_epoll



On Mar 2, 2015, at 4:55 AM, 8 <421174...@qq.com> wrote:

maybe you are right.
but cygwin is a linux environment on windows.



No, it is not.  It is a "unix-like" environment on Windows.


When Jean-Paul says that epoll is a "linux" feature, he does not mean that it 
is available on "linux-like" systems or that it is a POSIX or UNIX-ish feature. 
 It is specifically only available on Linux: it is not, for example, available 
on FreeBSD, or Mac OS X, and the thing called "epoll" on Solaris is something 
different that is not compatible.


For what it's worth, Cygwin is not a supported environment for Twisted.  We 
have buildbots that run native Windows python executables on a few versions of 
Windows, but we don't test under Cygwin.  It might work, but you may encounter 
bugs that we have not tested for, since none of our developers would be 
notified if it breaks.


-glyph
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