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bpo-38304: Add PyConfig.struct_size (GH-16451)

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Add a new struct_size field to PyPreConfig and PyConfig structures to
allow to modify these structures in the future without breaking the
backward compatibility.

* Replace private _config_version field with public struct_size field
  in PyPreConfig and PyConfig.
* Public PyPreConfig_InitIsolatedConfig() and
  PyPreConfig_InitPythonConfig()
  return type becomes PyStatus, instead of void.
* Internal _PyConfig_InitCompatConfig(),
  _PyPreConfig_InitCompatConfig(), _PyPreConfig_InitFromConfig(),
  _PyPreConfig_InitFromPreConfig() return type becomes PyStatus,
  instead of void.
* Remove _Py_CONFIG_VERSION
* Update the Initialization Configuration documentation.
This commit is contained in:
Victor Stinner 2019-09-28 04:28:35 +02:00 • committed by GitHub
parent 52d1b86bde
commit 441b10cf28
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 350 additions and 60 deletions
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7
Python/pathconfig.c
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@ -434,7 +434,12 @@ pathconfig_global_read(_PyPathConfig *pathconfig)
{
PyStatus status;
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config.struct_size = sizeof(PyConfig);
status = _PyConfig_InitCompatConfig(&config);
if (_PyStatus_EXCEPTION(status)) {
goto done;
}
/* Call _PyConfig_InitPathConfig() */
status = PyConfig_Read(&config);