From ed52aacb33623ac2e3d768ee3fcc205c6bd9046f Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Sat, 19 Jul 1997 19:20:32 +0000
Subject: [PATCH] This is no longer the real main program; it now defines
 Py_Main(), so it can be placed in the library.

Other, related changes:

- Moved the inspection of some environment variables to
Py_Initialize().

- Got rid of -s option.

- Moved Py_GetProgramName() and related logic to pythonrun.c; call
Py_SetProgramName() instead.

- Print the version header *after* successful initialization.
---
 Modules/main.c | 35 ++++++-----------------------------
 1 file changed, 6 insertions(+), 29 deletions(-)

diff --git a/Modules/main.c b/Modules/main.c
index 5c631d01bd9..801804bd4e0 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -53,9 +53,6 @@ extern char *Py_GetPlatform();
 extern char *Py_GetCopyright();
 
 
-/* For Py_GetProgramName(); set by main() */
-static char *argv0;
-
 /* For Py_GetArgcArgv(); set by main() */
 static char **orig_argv;
 static int  orig_argc;
@@ -71,8 +68,7 @@ Options and arguments (and corresponding environment variables):\n\
 -i     : inspect interactively after running script, (also PYTHONINSPECT=x)\n\
          and force prompts, even if stdin does not appear to be a terminal.\n\
 -O     : optimize generated bytecode (a tad).\n\
--s     : suppress printing of top level expressions (also PYTHONSUPPRESS=x)\n\
--u     : unbuffered stdout and stderr (also PYTHONUNBUFFERED=x)\n\
+-u     : unbuffered binary stdout and stderr (also PYTHONUNBUFFERED=x)\n\
 -v     : verbose (trace import statements) (also PYTHONVERBOSE=x)\n\
 ";
 static char *usage_bot = "\
@@ -93,7 +89,7 @@ PYTHONHOME   : alternate <prefix> directory (or <prefix>:<exec_prefix>).\n\
 /* Main program */
 
 int
-main(argc, argv)
+Py_Main(argc, argv)
 	int argc;
 	char **argv;
 {
@@ -109,20 +105,13 @@ main(argc, argv)
 
 	orig_argc = argc;	/* For Py_GetArgcArgv() */
 	orig_argv = argv;
-	argv0 = argv[0];	/* For Py_GetProgramName() */
 
-	if ((p = getenv("PYTHONDEBUG")) && *p != '\0')
-		Py_DebugFlag = 1;
-	if ((p = getenv("PYTHONSUPPRESS")) && *p != '\0')
-		Py_SuppressPrintingFlag = 1;
-	if ((p = getenv("PYTHONVERBOSE")) && *p != '\0')
-		Py_VerboseFlag = 1;
 	if ((p = getenv("PYTHONINSPECT")) && *p != '\0')
 		inspect = 1;
 	if ((p = getenv("PYTHONUNBUFFERED")) && *p != '\0')
 		unbuffered = 1;
 
-	while ((c = getopt(argc, argv, "c:diOsuv")) != EOF) {
+	while ((c = getopt(argc, argv, "c:diOuv")) != EOF) {
 		if (c == 'c') {
 			/* -c is the last option; following arguments
 			   that look like options are left for the
@@ -151,10 +140,6 @@ main(argc, argv)
 			Py_OptimizeFlag++;
 			break;
 
-		case 's':
-			Py_SuppressPrintingFlag++;
-			break;
-
 		case 'u':
 			unbuffered++;
 			break;
@@ -218,12 +203,14 @@ main(argc, argv)
 		/* Leave stderr alone - it should be unbuffered anyway. */
   	}
 
+	Py_SetProgramName(argv[0]);
+	Py_Initialize();
+
 	if (Py_VerboseFlag ||
 	    (command == NULL && filename == NULL && stdin_is_interactive))
 		fprintf(stderr, "Python %s on %s\n%s\n",
 			Py_GetVersion(), Py_GetPlatform(), Py_GetCopyright());
 	
-	Py_Initialize();
 	
 	if (command != NULL) {
 		/* Backup optind and force sys.argv[0] = '-c' */
@@ -264,16 +251,6 @@ main(argc, argv)
 }
 
 
-/* Return the program name -- some code out there needs this
-   (currently _tkinter.c and importdl.c). */
-
-char *
-Py_GetProgramName()
-{
-	return argv0;
-}
-
-
 /* Make the *original* argc/argv available to other modules.
    This is rare, but it is needed by the secureware extension. */