test_urllib2.test_issue16464() fails randomly

[vstinner]

BPO	46651
Nosy	@vstinner
Superseder	bpo-46648: test.test_urllib2.MiscTests.test_issue16464 flaky due to external connection

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2022-02-05.17:59:58.693>
created_at = <Date 2022-02-05.17:57:15.906>
labels = ['tests', '3.11']
title = 'test_urllib2.test_issue16464() fails randomly'
updated_at = <Date 2022-02-05.17:59:58.691>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2022-02-05.17:59:58.691>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2022-02-05.17:59:58.693>
closer = 'vstinner'
components = ['Tests']
creation = <Date 2022-02-05.17:57:15.906>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 46651
keywords = []
message_count = 2.0
messages = ['412586', '412587']
nosy_count = 1.0
nosy_names = ['vstinner']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '46648'
type = None
url = 'https://bugs.python.org/issue46651'
versions = ['Python 3.11']

[vstinner]

test_urllib2.test_issue16464() fails randomly.

It uses http://www.example.com/ server.

Instead, I proposed to use http://httpbin.org/post URL which is written to support HTTP POST.

$ ./python -m test test_urllib2 -u all -v -m test_issue16464

======================================================================
ERROR: test_issue16464 (test.test_urllib2.MiscTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/home/vstinner/python/main/Lib/contextlib.py", line 155, in __exit__
    self.gen.throw(typ, value, traceback)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/test/support/socket_helper.py", line 245, in transient_internet
    yield
    ^^^^^
  File "/home/vstinner/python/main/Lib/test/test_urllib2.py", line 1799, in test_issue16464
    opener.open(request, "1".encode("us-ascii"))
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/urllib/request.py", line 525, in open
    response = meth(req, response)
               ^^^^^^^^^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/urllib/request.py", line 634, in http_response
    response = self.parent.error(
               ^^^^^^^^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/urllib/request.py", line 563, in error
    return self._call_chain(*args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/urllib/request.py", line 496, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "/home/vstinner/python/main/Lib/urllib/request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
urllib.error.HTTPError: HTTP Error 404: Not Found

[vstinner]

Oh, bpo-46648 was already opened.