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bpo-42260: Compute the path config in the main init (GH-23211)

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The path configuration is now computed in the "main" initialization.
The core initialization no longer computes it.

* Add _PyConfig_Read() function to read the configuration without
  computing the path configuration.
* pyinit_core() no longer computes the path configuration: it is now
  computed by init_interp_main().
* The path configuration output members of PyConfig are now optional:

  * executable
  * base_executable
  * prefix
  * base_prefix
  * exec_prefix
  * base_exec_prefix

* _PySys_UpdateConfig() now skips NULL strings in PyConfig.
* _testembed: Rename test_set_config() to test_init_set_config() for
  consistency with other tests.
This commit is contained in:
Victor Stinner 2020-11-10 13:21:52 +01:00 • committed by GitHub
parent 38811d68ca
commit 9e1b828265
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6 changed files with 85 additions and 74 deletions
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Include/internal/pycore_initconfig.h
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@ -152,6 +152,7 @@ extern PyStatus _PyConfig_Copy(
PyConfig *config,
const PyConfig *config2);
extern PyStatus _PyConfig_InitPathConfig(PyConfig *config);
extern PyStatus _PyConfig_Read(PyConfig *config, int compute_path_config);
extern PyStatus _PyConfig_Write(const PyConfig *config,
struct pyruntimestate *runtime);
extern PyStatus _PyConfig_SetPyArgv(