cpython/Programs/_bootstrap_python.c

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/* Frozen modules bootstrap
*
* Limited and restricted Python interpreter to run
* "Tools/build/deepfreeze.py" on systems with no or older Python
* interpreter.
*/
#include "Python.h"
#include "pycore_import.h"
/* Includes for frozen modules: */
#include "Python/frozen_modules/importlib._bootstrap.h"
#include "Python/frozen_modules/importlib._bootstrap_external.h"
#include "Python/frozen_modules/zipimport.h"
/* End includes */
/* Note that a negative size indicates a package. */
static const struct _frozen bootstrap_modules[] = {
{"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap)},
{"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external)},
{"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport)},
{0, 0, 0} /* bootstrap sentinel */
};
static const struct _frozen stdlib_modules[] = {
{0, 0, 0} /* stdlib sentinel */
};
static const struct _frozen test_modules[] = {
{0, 0, 0} /* test sentinel */
};
const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
const struct _frozen *_PyImport_FrozenStdlib = stdlib_modules;
const struct _frozen *_PyImport_FrozenTest = test_modules;
static const struct _module_alias aliases[] = {
{"_frozen_importlib", "importlib._bootstrap"},
{"_frozen_importlib_external", "importlib._bootstrap_external"},
{0, 0} /* aliases sentinel */
};
const struct _module_alias *_PyImport_FrozenAliases = aliases;
/* Embedding apps may change this pointer to point to their favorite
collection of frozen modules: */
const struct _frozen *PyImport_FrozenModules = NULL;
int
#ifdef MS_WINDOWS
wmain(int argc, wchar_t **argv)
#else
main(int argc, char **argv)
#endif
{
PyStatus status;
PyConfig config;
PyConfig_InitIsolatedConfig(&config);
// don't warn, pybuilddir.txt does not exist yet
config.pathconfig_warnings = 0;
// parse arguments
config.parse_argv = 1;
// add current script dir to sys.path
config.isolated = 0;
config.safe_path = 0;
#ifdef MS_WINDOWS
status = PyConfig_SetArgv(&config, argc, argv);
#else
status = PyConfig_SetBytesArgv(&config, argc, argv);
#endif
if (PyStatus_Exception(status)) {
goto error;
}
status = PyConfig_Read(&config);
if (config.run_filename == NULL) {
status = PyStatus_Error("Run filename expected");
goto error;
}
#define CLEAR(ATTR) \
do { \
PyMem_RawFree(ATTR); \
ATTR = NULL; \
} while (0)
// isolate from system Python
CLEAR(config.base_prefix);
CLEAR(config.prefix);
CLEAR(config.base_exec_prefix);
CLEAR(config.exec_prefix);
status = Py_InitializeFromConfig(&config);
if (PyStatus_Exception(status)) {
goto error;
}
PyConfig_Clear(&config);
return Py_RunMain();
error:
PyConfig_Clear(&config);
if (PyStatus_IsExit(status)) {
return status.exitcode;
}
Py_ExitStatusException(status);
}