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bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)

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An isolated subinterpreter cannot spawn threads, spawn a child
process or call os.fork().

* Add private _Py_NewInterpreter(isolated_subinterpreter) function.
* Add isolated=True keyword-only parameter to
  _xxsubinterpreters.create().
* Allow again os.fork() in "non-isolated" subinterpreters.
This commit is contained in:
Victor Stinner 2020-05-01 11:33:44 +02:00 • committed by GitHub
parent 8bcfd31cc0
commit 252346acd9
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14 changed files with 68 additions and 12 deletions
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3
Lib/test/test_embed.py
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@ -406,6 +406,7 @@ class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
'check_hash_pycs_mode': 'default',
'pathconfig_warnings': 1,
'_init_main': 1,
'_isolated_interpreter': 0,
}
if MS_WINDOWS:
CONFIG_COMPAT.update({
@ -766,6 +767,8 @@ class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
'check_hash_pycs_mode': 'always',
'pathconfig_warnings': 0,
'_isolated_interpreter': 1,
}
self.check_all_configs("test_init_from_config", config, preconfig,
api=API_COMPAT)