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Two independent changes (oops):

Browse source 
- Changed semantics for initialized flag (again); forget the ref
counting, forget the fatal errors -- redundant calls to
Py_Initialize() or Py_Finalize() calls are simply ignored.

- Automatically import site.py on initialization, unless a flag is set
not to do this by main().
This commit is contained in:
Guido van Rossum 1997-08-29 22:32:42 +00:00
parent f30bec7bb2
commit dcc0c13f74
1 changed files with 35 additions and 4 deletions
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39
Python/pythonrun.c
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@ -60,6 +60,7 @@ extern grammar _PyParser_Grammar; /* From graminit.c */
/* Forward */
static void initmain Py_PROTO((void));
static void initsite Py_PROTO((void));
static PyObject *run_err_node Py_PROTO((node *n, char *filename,
PyObject *globals, PyObject *locals));
static PyObject *run_node Py_PROTO((node *n, char *filename,
@ -75,6 +76,7 @@ static void call_ll_exitfuncs Py_PROTO((void));
int Py_DebugFlag; /* Needed by parser.c */
int Py_VerboseFlag; /* Needed by import.c */
int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
int Py_NoSiteFlag; /* Suppress 'import site' */
int Py_UseClassExceptionsFlag; /* Needed by bltinmodule.c */
static int initialized = 0;
@ -107,8 +109,9 @@ Py_Initialize()
PyObject *bimod, *sysmod;
char *p;
if (++initialized > 1)
if (initialized)
return;
initialized = 1;
if ((p = getenv("PYTHONDEBUG")) && *p != '\0')
Py_DebugFlag = 1;
@ -153,6 +156,8 @@ Py_Initialize()
initsigs(); /* Signal handling stuff, including initintr() */
initmain(); /* Module __main__ */
if (!Py_NoSiteFlag)
initsite(); /* Module site */
}
/* Undo the effect of Py_Initialize().
@ -177,10 +182,9 @@ Py_Finalize()
call_sys_exitfunc();
if (--initialized > 0)
if (!initialized)
return;
if (initialized < 0)
Py_FatalError("Py_Finalize: not initialized");
initialized = 0;
/* We must call this before the current thread gets removed because
it decrefs class instances, which in turn save and restore the
@ -291,6 +295,8 @@ Py_NewInterpreter()
PyDict_SetItemString(interp->sysdict, "modules",
interp->modules);
initmain();
if (!Py_NoSiteFlag)
initsite();
}
if (!PyErr_Occurred())
@ -371,6 +377,31 @@ initmain()
}
}
/* Import the site module (not into __main__ though) */
static void
initsite()
{
PyObject *m, *f;
m = PyImport_ImportModule("site");
if (m == NULL) {
f = PySys_GetObject("stderr");
if (Py_VerboseFlag) {
PyFile_WriteString(
"'import site' failed; traceback:\n", f);
PyErr_Print();
}
else {
PyFile_WriteString(
"'import site' failed; use -v for traceback\n", f);
PyErr_Clear();
}
}
else {
Py_DECREF(m);
}
}
/* Parse input from a file and execute it */
int