New submission from Brian Curtin <br...@python.org>:
I'm currently trying to run my `tox` testing environment—all of which runs
under `coverage`—against 3.10b3 and am running into some trouble. I initially
thought it was something about tox or coverage, but it looks lower level than
that as the venv script in the stdlib isn't working. I'm not actually sure if
the direct problem I'm experiencing is the same as what I'm listing below, but
it reproduces the same result:
$ python3.10 -m venv ~/.envs/test
Error: subprocess not supported for isolated subinterpreters
Here's the version I'm running: Python 3.10.0b3 (tags/v3.10.0b3:865714a117, Jun
17 2021, 17:37:28) [Clang 10.0.1 (clang-1001.0.46.4)] on darwin
In case it's helpful, here's a full traceback from tox:
action: py310-unit, msg: getenv
cwd: /Users/briancurtin/elastic/cloud/python-services-v3
cmd:
/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/bin/python
-m pip install coverage -rrequirements.txt -rtest-requirements.txt
Collecting coverage
Using cached coverage-5.5.tar.gz (691 kB)
ERROR: Error subprocess not supported for isolated subinterpreters while
executing command python setup.py egg_info
ERROR: Exception:
Traceback (most recent call last):
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/cli/base_command.py",
line 188, in _main
status = self.run(options, args)
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/cli/req_command.py",
line 185, in wrapper
return func(self, options, args)
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/commands/install.py",
line 332, in run
requirement_set = resolver.resolve(
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/resolution/legacy/resolver.py",
line 179, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/resolution/legacy/resolver.py",
line 362, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/resolution/legacy/resolver.py",
line 314, in _get_abstract_dist_for
abstract_dist = self.preparer.prepare_linked_requirement(req)
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/operations/prepare.py",
line 487, in prepare_linked_requirement
abstract_dist = _get_prepared_distribution(
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/operations/prepare.py",
line 91, in _get_prepared_distribution
abstract_dist.prepare_distribution_metadata(finder, build_isolation)
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/distributions/sdist.py",
line 40, in prepare_distribution_metadata
self.req.prepare_metadata()
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/req/req_install.py",
line 550, in prepare_metadata
self.metadata_directory = self._generate_metadata()
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/req/req_install.py",
line 525, in _generate_metadata
return generate_metadata_legacy(
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/operations/build/metadata_legacy.py",
line 70, in generate_metadata
call_subprocess(
File
"/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/lib/python3.10/site-packages/pip/_internal/utils/subprocess.py",
line 185, in call_subprocess
proc = subprocess.Popen(
File "/usr/local/lib/python3.10/subprocess.py", line 962, in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/local/lib/python3.10/subprocess.py", line 1773, in _execute_child
self.pid = _posixsubprocess.fork_exec(
RuntimeError: subprocess not supported for isolated subinterpreters
WARNING: You are using pip version 20.1.1; however, version 21.1.2 is available.
You should consider upgrading via the
'/Users/briancurtin/elastic/cloud/python-services-v3/.tox/py310-unit/bin/python
-m pip install --upgrade pip' command.
----------
messages: 396262
nosy: brian.curtin
priority: normal
severity: normal
status: open
title: "subprocess not supported for isolated subinterpreters" when running venv
type: behavior
versions: Python 3.10
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44476>
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