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bpo-42260: Fix _PyConfig_Read() if compute_path_config=0 (GH-23220)

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Fix _PyConfig_Read() if compute_path_config=0: use values set by
Py_SetPath(), Py_SetPythonHome() and Py_SetProgramName(). Add
compute_path_config parameter to _PyConfig_InitPathConfig().

The following functions now return NULL if called before
Py_Initialize():

* Py_GetExecPrefix()
* Py_GetPath()
* Py_GetPrefix()
* Py_GetProgramFullPath()
* Py_GetProgramName()
* Py_GetPythonHome()

These functions no longer automatically computes the Python Path
Configuration. Moreover, Py_SetPath() no longer computes
program_full_path.
This commit is contained in:
Victor Stinner 2020-11-10 21:10:22 +01:00 • committed by GitHub
parent 1e996c3a3b
commit ace3f9a0ce
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8 changed files with 93 additions and 95 deletions
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4
Include/internal/pycore_initconfig.h
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@ -151,7 +151,9 @@ PyAPI_FUNC(void) _PyConfig_InitCompatConfig(PyConfig *config);
extern PyStatus _PyConfig_Copy(
PyConfig *config,
const PyConfig *config2);
extern PyStatus _PyConfig_InitPathConfig(PyConfig *config);
extern PyStatus _PyConfig_InitPathConfig(
PyConfig *config,
int compute_path_config);
extern PyStatus _PyConfig_Read(PyConfig *config, int compute_path_config);
extern PyStatus _PyConfig_Write(const PyConfig *config,
struct pyruntimestate *runtime);