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bpo-34170: Add _Py_InitializeFromConfig() (GH-8454)

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* If _Py_InitializeCore() is called twice, the second call now copies
  and apply (partially) the new configuration.
* Rename _Py_CommandLineDetails to _PyCmdline
* Move more code into pymain_init(). The core configuration created
  by Py_Main() is new destroyed before running Python to reduce the
  memory footprint.
* _Py_InitializeCore() now returns the created interpreter.
  _Py_InitializeMainInterpreter() now expects an interpreter.
* Remove _Py_InitializeEx_Private(): _freeze_importlib now uses
  _Py_InitializeFromConfig()
* _PyCoreConfig_InitPathConfig() now only computes the path
  configuration if needed.
This commit is contained in:
Victor Stinner 2018-07-25 02:49:17 +02:00 • committed by GitHub
parent 6cf8255912
commit 1dc6e3906a
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 305 additions and 208 deletions
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11
Include/pylifecycle.h
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@ -51,7 +51,9 @@ PyAPI_FUNC(int) Py_SetStandardStreamEncoding(const char *encoding,
const char *errors);
/* PEP 432 Multi-phase initialization API (Private while provisional!) */
PyAPI_FUNC(_PyInitError) _Py_InitializeCore(const _PyCoreConfig *);
PyAPI_FUNC(_PyInitError) _Py_InitializeCore(
PyInterpreterState **interp,
const _PyCoreConfig *);
PyAPI_FUNC(int) _Py_IsCoreInitialized(void);
PyAPI_FUNC(_PyInitError) _PyCoreConfig_Read(_PyCoreConfig *config);
@ -73,14 +75,17 @@ PyAPI_FUNC(int) _PyMainInterpreterConfig_Copy(
_PyMainInterpreterConfig *config,
const _PyMainInterpreterConfig *config2);
PyAPI_FUNC(_PyInitError) _Py_InitializeMainInterpreter(const _PyMainInterpreterConfig *);
PyAPI_FUNC(_PyInitError) _Py_InitializeMainInterpreter(
PyInterpreterState *interp,
const _PyMainInterpreterConfig *);
#endif
/* Initialization and finalization */
PyAPI_FUNC(void) Py_Initialize(void);
PyAPI_FUNC(void) Py_InitializeEx(int);
#ifndef Py_LIMITED_API
PyAPI_FUNC(_PyInitError) _Py_InitializeEx_Private(int, int);
PyAPI_FUNC(_PyInitError) _Py_InitializeFromConfig(
const _PyCoreConfig *config);
PyAPI_FUNC(void) _Py_FatalInitError(_PyInitError err) _Py_NO_RETURN;
#endif
PyAPI_FUNC(void) Py_Finalize(void);