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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.
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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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Doc/c-api/init_config.rst
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@ -1004,6 +1004,8 @@ Private provisional API:
* :c:member:`PyConfig._init_main`: if set to 0,
:c:func:`Py_InitializeFromConfig` stops at the "Core" initialization phase.
* :c:member:`PyConfig._isolated_interpreter`: if non-zero,
disallow threads, subprocesses and fork.
.. c:function:: PyStatus _Py_InitializeMain(void)