[issue37901] 21 tests fail when run on an IPv6-only host

[Gregory P. Smith]

Gregory P. Smith  added the comment:

Here's how I created an IPv6-only host: 
https://gist.github.com/gpshead/f4f394593674e5f7a58e9424b4dba989

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[issue37901] 21 tests fail when run on an IPv6-only host

[Gregory P. Smith]

Change by Gregory P. Smith :


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keywords: +patch
pull_requests: +24842
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/26225

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[issue37901] 21 tests fail when run on an IPv6-only host

[STINNER Victor]

STINNER Victor  added the comment:

>  (I already filed separate issues about 5 other tests that hang rather than 
> fail)

Maybe use this issue as a meta-issue for IPv6-only issues? I saw:

* bpo-37895: test_logging hangs on an IPv6-only host
* bpo-37896: test_multiprocessing_fork hangs on an IPv6-only host
* bpo-37897: test_asyncio hangs on an IPv6-only host
* bpo-37898: test_httpservers hangs on an IPv6-only host
* bpo-37899: test_xmlrpc hangs on an IPv6-only host

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[issue37901] 21 tests fail when run on an IPv6-only host

[STINNER Victor]

STINNER Victor  added the comment:

How do you configure a Linux box to disable IPv4? At least, disable IPv4 
localhost?

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[issue37901] 21 tests fail when run on an IPv6-only host

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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nosy: +vstinner

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[issue37901] 21 tests fail when run on an IPv6-only host

[Gregory P. Smith]

New submission from Gregory P. Smith :

21 tests failed:
test_asynchat test_asyncore test_docxmlrpc test_eintr test_epoll
test_ftplib test_httplib test_imaplib
test_multiprocessing_forkserver test_multiprocessing_spawn
test_nntplib test_os test_poplib test_robotparser test_smtplib
test_socket test_ssl test_support test_telnetlib
test_urllib2_localnet test_wsgiref

This is a rollup tracking issue.  I've got an IPv6-only future buildbot host 
with which to run an diagnose these for fixes.  Of note there is no IPv4 
localhost.

If there are larger problems I may spawn child bugs for specific issues off of 
this one.  (I already filed separate issues about 5 other tests that hang 
rather than fail)

--
assignee: gregory.p.smith
components: Tests
messages: 350039
nosy: gregory.p.smith
priority: normal
severity: normal
stage: needs patch
status: open
title: 21 tests fail when run on an IPv6-only host
type: behavior
versions: Python 3.7, Python 3.8, Python 3.9

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