cpython/Python/frozenmain.c

/* Python interpreter main program for frozen scripts */

#include "Python.h"

#ifdef MS_WINDOWS
extern void PyWinFreeze_ExeInit(void);
extern void PyWinFreeze_ExeTerm(void);
extern int PyInitFrozenExtensions(void);
#endif

/* Main program */

int
Py_FrozenMain(int argc, char **argv)
{
    char *p;
    int n, sts;
    int inspect = 0;
    int unbuffered = 0;

    Py_FrozenFlag = 1; /* Suppress errors from getpath.c */

    if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
        inspect = 1;
    if ((p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
        unbuffered = 1;

    if (unbuffered) {
        setbuf(stdin, (char *)NULL);
        setbuf(stdout, (char *)NULL);
        setbuf(stderr, (char *)NULL);
    }

#ifdef MS_WINDOWS
    PyInitFrozenExtensions();
#endif /* MS_WINDOWS */
    Py_SetProgramName(argv[0]);
    Py_Initialize();
#ifdef MS_WINDOWS
    PyWinFreeze_ExeInit();
#endif

    if (Py_VerboseFlag)
        fprintf(stderr, "Python %s\n%s\n",
            Py_GetVersion(), Py_GetCopyright());

    PySys_SetArgv(argc, argv);

    n = PyImport_ImportFrozenModule("__main__");
    if (n == 0)
        Py_FatalError("__main__ not frozen");
    if (n < 0) {
        PyErr_Print();
        sts = 1;
    }
    else
        sts = 0;

    if (inspect && isatty((int)fileno(stdin)))
        sts = PyRun_AnyFile(stdin, "<stdin>") != 0;

#ifdef MS_WINDOWS
    PyWinFreeze_ExeTerm();
#endif
    Py_Finalize();
    return sts;
}