[issue29255] selects.KqueueSelector behaves incorrectly when no fds are registered
Russell Davis added the comment: This looks like it's the cause of https://bugs.python.org/issue25680 -- nosy: +russelldavis ___ Python tracker <https://bugs.python.org/issue29255> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25680] Selector.select() hangs when there is nothing to select
Russell Davis added the comment: Looks like this is caused by #29255 -- nosy: +russelldavis ___ Python tracker <https://bugs.python.org/issue25680> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue40251] selectors.KqueueSelector hangs on EOF, unlike other selectors
New submission from Russell Davis :
Repro (on macOS):
from selectors import KqueueSelector, EVENT_READ
with open('/tmp/foo', 'w') as f:
f.write("bar")
sel = KqueueSelector()
sel.register(f, EVENT_READ)
sel.select()
The above code will hang on the last line. If you change KqueueSelector to
PollSelector or SelectSelector, it will not hang.
Per msg255116, the different selectors should behave consistently.
--
components: IO, Library (Lib), asyncio
messages: 366167
nosy: asvetlov, russelldavis, yselivanov
priority: normal
severity: normal
status: open
title: selectors.KqueueSelector hangs on EOF, unlike other selectors
versions: Python 3.8
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[issue40252] selectors.KqueueSelector should not be the default selector
New submission from Russell Davis : There are at least two outstanding bugs where KqueueSelector behaves differently than the other selectors: #40251 #25680 This breaks the abstraction of being able to rely on DefaultSelector() to provide consistent behavior. At least on macOS, PollSelector works reliably, so I propose using that instead of KqueueSelector when setting DefaultSelector. (Even if the above bugs eventually get fixed, sticking with PollSelector when possible seems more likely to avoid similar future issues.) -- components: IO, Library (Lib), asyncio messages: 366168 nosy: asvetlov, russelldavis, yselivanov priority: normal severity: normal status: open title: selectors.KqueueSelector should not be the default selector versions: Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 3.9 ___ Python tracker <https://bugs.python.org/issue40252> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue29255] selects.KqueueSelector behaves incorrectly when no fds are registered
Change by Russell Davis : -- keywords: +patch pull_requests: +18860 stage: -> patch review pull_request: https://github.com/python/cpython/pull/19508 ___ Python tracker <https://bugs.python.org/issue29255> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25680] Selector.select() hangs when there is nothing to select
Change by Russell Davis : -- keywords: +patch pull_requests: +18861 stage: -> patch review pull_request: https://github.com/python/cpython/pull/19508 ___ Python tracker <https://bugs.python.org/issue25680> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25680] Selector.select() hangs when there is nothing to select
Russell Davis added the comment: @gvanrossum PR is ready for review: https://github.com/python/cpython/pull/19508 -- ___ Python tracker <https://bugs.python.org/issue25680> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25680] Selector.select() hangs when there is nothing to select
Russell Davis added the comment: I think this got auto-closed due to a link in the PR. Note that, per https://github.com/python/cpython/pull/19508#issuecomment-613317021, the behavior is still inconsistent on windows. I think the solution there will have to be a call to sleep() when the list of fds is empty. -- ___ Python tracker <https://bugs.python.org/issue25680> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue40507] FileNotFound error raised by os.exec* doesn't contain filename
New submission from Russell Davis :
To repro:
>>> import os, sys
>>> os.execv("nosuchfile", ["nosuchfile"])
Traceback (most recent call last):
File "", line 1, in
FileNotFoundError: [Errno 2] No such file or directory
>>> print(sys.last_value.filename)
None
--
components: Library (Lib)
messages: 368106
nosy: russelldavis
priority: normal
severity: normal
status: open
title: FileNotFound error raised by os.exec* doesn't contain filename
versions: Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 3.9
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[issue40507] FileNotFound error raised by os.exec* doesn't contain filename
Change by Russell Davis : -- keywords: +patch pull_requests: +19230 stage: -> patch review pull_request: https://github.com/python/cpython/pull/19915 ___ Python tracker <https://bugs.python.org/issue40507> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
