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bpo-32030: Add _PyCoreConfig.module_search_path_env (#4504)

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Changes:

* Py_Main() initializes _PyCoreConfig.module_search_path_env from
  the PYTHONPATH environment variable.
* PyInterpreterState_New() now initializes core_config and config
  fields
* Compute sys.path a little bit ealier in
  _Py_InitializeMainInterpreter() and new_interpreter()
* Add _Py_GetPathWithConfig() private function.
This commit is contained in:
Victor Stinner 2017-11-23 00:12:09 +01:00 • committed by GitHub
parent 82656276ca
commit d434110974
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 189 additions and 86 deletions
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16
Python/pylifecycle.c
View file

@ -48,8 +48,6 @@ _Py_IDENTIFIER(threading);
extern "C" {
#endif
extern wchar_t *Py_GetPath(void);
extern grammar _PyParser_Grammar; /* From graminit.c */
/* Forward */
@ -842,6 +840,11 @@ _Py_InitializeMainInterpreter(const _PyMainInterpreterConfig *config)
/* Now finish configuring the main interpreter */
interp->config = *config;
/* GetPath may initialize state that _PySys_EndInit locks
in, and so has to be called first. */
/* TODO: Call Py_GetPath() in Py_ReadConfig, rather than here */
wchar_t *sys_path = _Py_GetPathWithConfig(&interp->core_config);
if (interp->core_config._disable_importlib) {
/* Special mode for freeze_importlib: run with no import system
*
@ -857,10 +860,7 @@ _Py_InitializeMainInterpreter(const _PyMainInterpreterConfig *config)
return _Py_INIT_ERR("can't initialize time");
/* Finish setting up the sys module and import system */
/* GetPath may initialize state that _PySys_EndInit locks
in, and so has to be called first. */
/* TODO: Call Py_GetPath() in Py_ReadConfig, rather than here */
PySys_SetPath(Py_GetPath());
PySys_SetPath(sys_path);
if (_PySys_EndInit(interp->sysdict) < 0)
return _Py_INIT_ERR("can't finish initializing sys");
@ -1301,6 +1301,8 @@ new_interpreter(PyThreadState **tstate_p)
/* XXX The following is lax in error checking */
wchar_t *sys_path = _Py_GetPathWithConfig(&interp->core_config);
PyObject *modules = PyDict_New();
if (modules == NULL) {
return _Py_INIT_ERR("can't make modules dictionary");
@ -1314,7 +1316,7 @@ new_interpreter(PyThreadState **tstate_p)
goto handle_error;
Py_INCREF(interp->sysdict);
PyDict_SetItemString(interp->sysdict, "modules", modules);
PySys_SetPath(Py_GetPath());
PySys_SetPath(sys_path);
_PySys_EndInit(interp->sysdict);
}

85
Python/pystate.c
View file

@ -106,55 +106,60 @@ PyInterpreterState_New(void)
PyInterpreterState *interp = (PyInterpreterState *)
PyMem_RawMalloc(sizeof(PyInterpreterState));
if (interp != NULL) {
interp->modules = NULL;
interp->modules_by_index = NULL;
interp->sysdict = NULL;
interp->builtins = NULL;
interp->builtins_copy = NULL;
interp->tstate_head = NULL;
interp->check_interval = 100;
interp->num_threads = 0;
interp->pythread_stacksize = 0;
interp->codec_search_path = NULL;
interp->codec_search_cache = NULL;
interp->codec_error_registry = NULL;
interp->codecs_initialized = 0;
interp->fscodec_initialized = 0;
interp->importlib = NULL;
interp->import_func = NULL;
interp->eval_frame = _PyEval_EvalFrameDefault;
interp->co_extra_user_count = 0;
if (interp == NULL) {
return NULL;
}
interp->modules = NULL;
interp->modules_by_index = NULL;
interp->sysdict = NULL;
interp->builtins = NULL;
interp->builtins_copy = NULL;
interp->tstate_head = NULL;
interp->check_interval = 100;
interp->num_threads = 0;
interp->pythread_stacksize = 0;
interp->codec_search_path = NULL;
interp->codec_search_cache = NULL;
interp->codec_error_registry = NULL;
interp->codecs_initialized = 0;
interp->fscodec_initialized = 0;
interp->core_config = _PyCoreConfig_INIT;
interp->config = _PyMainInterpreterConfig_INIT;
interp->importlib = NULL;
interp->import_func = NULL;
interp->eval_frame = _PyEval_EvalFrameDefault;
interp->co_extra_user_count = 0;
#ifdef HAVE_DLOPEN
#if HAVE_DECL_RTLD_NOW
interp->dlopenflags = RTLD_NOW;
interp->dlopenflags = RTLD_NOW;
#else
interp->dlopenflags = RTLD_LAZY;
interp->dlopenflags = RTLD_LAZY;
#endif
#endif
#ifdef HAVE_FORK
interp->before_forkers = NULL;
interp->after_forkers_parent = NULL;
interp->after_forkers_child = NULL;
interp->before_forkers = NULL;
interp->after_forkers_parent = NULL;
interp->after_forkers_child = NULL;
#endif
HEAD_LOCK();
interp->next = _PyRuntime.interpreters.head;
if (_PyRuntime.interpreters.main == NULL) {
_PyRuntime.interpreters.main = interp;
}
_PyRuntime.interpreters.head = interp;
if (_PyRuntime.interpreters.next_id < 0) {
/* overflow or Py_Initialize() not called! */
PyErr_SetString(PyExc_RuntimeError,
"failed to get an interpreter ID");
interp = NULL;
} else {
interp->id = _PyRuntime.interpreters.next_id;
_PyRuntime.interpreters.next_id += 1;
}
HEAD_UNLOCK();
HEAD_LOCK();
interp->next = _PyRuntime.interpreters.head;
if (_PyRuntime.interpreters.main == NULL) {
_PyRuntime.interpreters.main = interp;
}
_PyRuntime.interpreters.head = interp;
if (_PyRuntime.interpreters.next_id < 0) {
/* overflow or Py_Initialize() not called! */
PyErr_SetString(PyExc_RuntimeError,
"failed to get an interpreter ID");
interp = NULL;
} else {
interp->id = _PyRuntime.interpreters.next_id;
_PyRuntime.interpreters.next_id += 1;
}
HEAD_UNLOCK();
return interp;
}