Index: Include/pydebug.h
===================================================================
RCS file: /cvsroot/python/python/dist/src/Include/pydebug.h,v
retrieving revision 2.19
diff -c -r2.19 pydebug.h
*** Include/pydebug.h	6 Dec 2001 06:23:25 -0000	2.19
--- Include/pydebug.h	12 Jan 2003 18:59:50 -0000
***************
*** 16,21 ****
--- 16,22 ----
  extern DL_IMPORT(int) Py_UnicodeFlag;
  extern DL_IMPORT(int) Py_IgnoreEnvironmentFlag;
  extern DL_IMPORT(int) Py_DivisionWarningFlag;
+ extern DL_IMPORT(int) Py_ReadOnlyBytecodeFlag;
  /* _XXX Py_QnewFlag should go away in 2.3.  It's true iff -Qnew is passed,
    on the command line, and is used in 2.2 by ceval.c to make all "/" divisions
    true divisions (which they will be in 2.3). */
Index: Modules/main.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/main.c,v
retrieving revision 1.61.6.2
diff -c -r1.61.6.2 main.c
*** Modules/main.c	17 Mar 2002 19:42:18 -0000	1.61.6.2
--- Modules/main.c	12 Jan 2003 18:59:50 -0000
***************
*** 25,31 ****
  static int  orig_argc;
  
  /* command line options */
! #define BASE_OPTS "c:dEhiOQ:StuUvVW:xX"
  
  #ifndef RISCOS
  #define PROGRAM_OPTS BASE_OPTS
--- 25,31 ----
  static int  orig_argc;
  
  /* command line options */
! #define BASE_OPTS "c:dEhiOQ:RStuUvVW:xX"
  
  #ifndef RISCOS
  #define PROGRAM_OPTS BASE_OPTS
***************
*** 55,60 ****
--- 55,61 ----
  -O     : optimize generated bytecode (a tad; also PYTHONOPTIMIZE=x)\n\
  -OO    : remove doc-strings in addition to the -O optimizations\n\
  -Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew\n\
+ -R     : don't write .py[co] files on import\n\
  -S     : don't imply 'import site' on initialization\n\
  -t     : issue warnings about inconsistent tab usage (-tt: issue errors)\n\
  -u     : unbuffered binary stdout and stderr (also PYTHONUNBUFFERED=x)\n\
***************
*** 185,190 ****
--- 186,195 ----
  
  		case 'O':
  			Py_OptimizeFlag++;
+ 			break;
+ 
+ 		case 'R':
+ 			Py_ReadOnlyBytecodeFlag++;
  			break;
  
  		case 'S':
Index: Python/import.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Python/import.c,v
retrieving revision 2.192.6.2
diff -c -r2.192.6.2 import.c
*** Python/import.c	1 Jun 2002 18:26:22 -0000	2.192.6.2
--- Python/import.c	12 Jan 2003 18:59:52 -0000
***************
*** 782,788 ****
  		if (Py_VerboseFlag)
  			PySys_WriteStderr("import %s # from %s\n",
  				name, pathname);
! 		write_compiled_module(co, cpathname, mtime);
  	}
  	m = PyImport_ExecCodeModuleEx(name, (PyObject *)co, pathname);
  	Py_DECREF(co);
--- 782,789 ----
  		if (Py_VerboseFlag)
  			PySys_WriteStderr("import %s # from %s\n",
  				name, pathname);
! 		if (!Py_ReadOnlyBytecodeFlag)
! 			write_compiled_module(co, cpathname, mtime);
  	}
  	m = PyImport_ExecCodeModuleEx(name, (PyObject *)co, pathname);
  	Py_DECREF(co);
Index: Python/pythonrun.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Python/pythonrun.c,v
retrieving revision 2.153.6.4
diff -c -r2.153.6.4 pythonrun.c
*** Python/pythonrun.c	20 Nov 2002 02:38:10 -0000	2.153.6.4
--- Python/pythonrun.c	12 Jan 2003 18:59:52 -0000
***************
*** 56,61 ****
--- 56,62 ----
  int Py_VerboseFlag; /* Needed by import.c */
  int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
  int Py_NoSiteFlag; /* Suppress 'import site' */
+ int Py_ReadOnlyBytecodeFlag; /* Suppress writing bytecode files (*.py[co]) */
  int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c: deprecated */
  int Py_FrozenFlag; /* Needed by getpath.c */
  int Py_UnicodeFlag = 0; /* Needed by compile.c */