diff --git a/Demo/embed/demo.c b/Demo/embed/demo.c
index 6005f13..55bc808 100644
--- a/Demo/embed/demo.c
+++ b/Demo/embed/demo.c
@@ -6,40 +6,40 @@
 
 main(int argc, char **argv)
 {
-	/* Pass argv[0] to the Python interpreter */
-	Py_SetProgramName(argv[0]);
+    /* Pass argv[0] to the Python interpreter */
+    Py_SetProgramName(argv[0]);
 
-	/* Initialize the Python interpreter.  Required. */
-	Py_Initialize();
+    /* Initialize the Python interpreter.  Required. */
+    Py_Initialize();
 
-	/* Add a static module */
-	initxyzzy();
+    /* Add a static module */
+    initxyzzy();
 
-	/* Define sys.argv.  It is up to the application if you
-	   want this; you can also let it undefined (since the Python 
-	   code is generally not a main program it has no business
-	   touching sys.argv...) */
-	PySys_SetArgv(argc, argv);
+    /* Define sys.argv.  It is up to the application if you
+       want this; you can also let it undefined (since the Python
+       code is generally not a main program it has no business
+       touching sys.argv...) */
+    PySys_SetArgv(argc, argv);
 
-	/* Do some application specific code */
-	printf("Hello, brave new world\n\n");
+    /* Do some application specific code */
+    printf("Hello, brave new world\n\n");
 
-	/* Execute some Python statements (in module __main__) */
-	PyRun_SimpleString("import sys\n");
-	PyRun_SimpleString("print sys.builtin_module_names\n");
-	PyRun_SimpleString("print sys.modules.keys()\n");
-	PyRun_SimpleString("print sys.executable\n");
-	PyRun_SimpleString("print sys.argv\n");
+    /* Execute some Python statements (in module __main__) */
+    PyRun_SimpleString("import sys\n");
+    PyRun_SimpleString("print sys.builtin_module_names\n");
+    PyRun_SimpleString("print sys.modules.keys()\n");
+    PyRun_SimpleString("print sys.executable\n");
+    PyRun_SimpleString("print sys.argv\n");
 
-	/* Note that you can call any public function of the Python
-	   interpreter here, e.g. call_object(). */
+    /* Note that you can call any public function of the Python
+       interpreter here, e.g. call_object(). */
 
-	/* Some more application specific code */
-	printf("\nGoodbye, cruel world\n");
+    /* Some more application specific code */
+    printf("\nGoodbye, cruel world\n");
 
-	/* Exit, cleaning up the interpreter */
-	Py_Exit(0);
-	/*NOTREACHED*/
+    /* Exit, cleaning up the interpreter */
+    Py_Exit(0);
+    /*NOTREACHED*/
 }
 
 /* A static module */
@@ -48,18 +48,18 @@
 static PyObject *
 xyzzy_foo(PyObject *self, PyObject* args)
 {
-	return PyInt_FromLong(42L);
+    return PyInt_FromLong(42L);
 }
 
 static PyMethodDef xyzzy_methods[] = {
-	{"foo",		xyzzy_foo,	METH_NOARGS,
-	 "Return the meaning of everything."},
-	{NULL,		NULL}		/* sentinel */
+    {"foo",             xyzzy_foo,      METH_NOARGS,
+     "Return the meaning of everything."},
+    {NULL,              NULL}           /* sentinel */
 };
 
 void
 initxyzzy(void)
 {
-	PyImport_AddModule("xyzzy");
-	Py_InitModule("xyzzy", xyzzy_methods);
+    PyImport_AddModule("xyzzy");
+    Py_InitModule("xyzzy", xyzzy_methods);
 }
diff --git a/Demo/embed/loop.c b/Demo/embed/loop.c
index d5af829..2f7fe62 100644
--- a/Demo/embed/loop.c
+++ b/Demo/embed/loop.c
@@ -6,28 +6,28 @@
 
 main(int argc, char **argv)
 {
-	int count = -1;
-	char *command;
+    int count = -1;
+    char *command;
 
-	if (argc < 2 || argc > 3) {
-		fprintf(stderr, "usage: loop <python-command> [count]\n");
-		exit(2);
-	}
-	command = argv[1];
+    if (argc < 2 || argc > 3) {
+        fprintf(stderr, "usage: loop <python-command> [count]\n");
+        exit(2);
+    }
+    command = argv[1];
 
-	if (argc == 3) {
-		count = atoi(argv[2]);
-	}
+    if (argc == 3) {
+        count = atoi(argv[2]);
+    }
 
-	Py_SetProgramName(argv[0]);
+    Py_SetProgramName(argv[0]);
 
-	/* uncomment this if you don't want to load site.py */
-	/* Py_NoSiteFlag = 1; */
+    /* uncomment this if you don't want to load site.py */
+    /* Py_NoSiteFlag = 1; */
 
-	while (count == -1 || --count >= 0 ) {
-		Py_Initialize();
-		PyRun_SimpleString(command);
-		Py_Finalize();
-	}
-	return 0;
+    while (count == -1 || --count >= 0 ) {
+        Py_Initialize();
+        PyRun_SimpleString(command);
+        Py_Finalize();
+    }
+    return 0;
 }
diff --git a/Demo/pysvr/pysvr.c b/Demo/pysvr/pysvr.c
index cced6da..706cd2a 100644
--- a/Demo/pysvr/pysvr.c
+++ b/Demo/pysvr/pysvr.c
@@ -34,8 +34,8 @@
 #endif
 
 struct workorder {
-	int conn;
-	struct sockaddr_in addr;
+    int conn;
+    struct sockaddr_in addr;
 };
 
 /* Forward */
@@ -55,40 +55,40 @@
 
 main(int argc, char **argv)
 {
-	int port = PORT;
-	int c;
+    int port = PORT;
+    int c;
 
-	if (argc > 0 && argv[0] != NULL && argv[0][0] != '\0')
-		progname = argv[0];
+    if (argc > 0 && argv[0] != NULL && argv[0][0] != '\0')
+        progname = argv[0];
 
-	while ((c = getopt(argc, argv, "v")) != EOF) {
-		switch (c) {
-		case 'v':
-			Py_VerboseFlag++;
-			break;
-		default:
-			usage();
-		}
-	}
+    while ((c = getopt(argc, argv, "v")) != EOF) {
+        switch (c) {
+        case 'v':
+            Py_VerboseFlag++;
+            break;
+        default:
+            usage();
+        }
+    }
 
-	if (optind < argc) {
-		if (optind+1 < argc) {
-			oprogname();
-			fprintf(stderr, "too many arguments\n");
-			usage();
-		}
-		port = atoi(argv[optind]);
-		if (port <= 0) {
-			fprintf(stderr, "bad port (%s)\n", argv[optind]);
-			usage();
-		}
-	}
+    if (optind < argc) {
+        if (optind+1 < argc) {
+            oprogname();
+            fprintf(stderr, "too many arguments\n");
+            usage();
+        }
+        port = atoi(argv[optind]);
+        if (port <= 0) {
+            fprintf(stderr, "bad port (%s)\n", argv[optind]);
+            usage();
+        }
+    }
 
-	main_thread(port);
+    main_thread(port);
 
-	fprintf(stderr, "Bye.\n");
+    fprintf(stderr, "Bye.\n");
 
-	exit(0);
+    exit(0);
 }
 
 static char usage_line[] = "usage: %s [port]\n";
@@ -96,120 +96,120 @@
 static void
 usage(void)
 {
-	fprintf(stderr, usage_line, progname);
-	exit(2);
+    fprintf(stderr, usage_line, progname);
+    exit(2);
 }
 
 static void
 main_thread(int port)
 {
-	int sock, conn, size, i;
-	struct sockaddr_in addr, clientaddr;
+    int sock, conn, size, i;
+    struct sockaddr_in addr, clientaddr;
 
-	sock = socket(PF_INET, SOCK_STREAM, 0);
-	if (sock < 0) {
-		oprogname();
-		perror("can't create socket");
-		exit(1);
-	}
+    sock = socket(PF_INET, SOCK_STREAM, 0);
+    if (sock < 0) {
+        oprogname();
+        perror("can't create socket");
+        exit(1);
+    }
 
 #ifdef SO_REUSEADDR
-	i = 1;
-	setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof i);
+    i = 1;
+    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof i);
 #endif
 
-	memset((char *)&addr, '\0', sizeof addr);
-	addr.sin_family = AF_INET;
-	addr.sin_port = htons(port);
-	addr.sin_addr.s_addr = 0L;
-	if (bind(sock, (struct sockaddr *)&addr, sizeof addr) < 0) {
-		oprogname();
-		perror("can't bind socket to address");
-		exit(1);
-	}
+    memset((char *)&addr, '\0', sizeof addr);
+    addr.sin_family = AF_INET;
+    addr.sin_port = htons(port);
+    addr.sin_addr.s_addr = 0L;
+    if (bind(sock, (struct sockaddr *)&addr, sizeof addr) < 0) {
+        oprogname();
+        perror("can't bind socket to address");
+        exit(1);
+    }
 
-	if (listen(sock, 5) < 0) {
-		oprogname();
-		perror("can't listen on socket");
-		exit(1);
-	}
+    if (listen(sock, 5) < 0) {
+        oprogname();
+        perror("can't listen on socket");
+        exit(1);
+    }
 
-	fprintf(stderr, "Listening on port %d...\n", port);
+    fprintf(stderr, "Listening on port %d...\n", port);
 
-	for (i = 0; ; i++) {
-		size = sizeof clientaddr;
-		memset((char *) &clientaddr, '\0', size);
-		conn = accept(sock, (struct sockaddr *) &clientaddr, &size);
-		if (conn < 0) {
-			oprogname();
-			perror("can't accept connection from socket");
-			exit(1);
-		}
+    for (i = 0; ; i++) {
+        size = sizeof clientaddr;
+        memset((char *) &clientaddr, '\0', size);
+        conn = accept(sock, (struct sockaddr *) &clientaddr, &size);
+        if (conn < 0) {
+            oprogname();
+            perror("can't accept connection from socket");
+            exit(1);
+        }
 
-		size = sizeof addr;
-		memset((char *) &addr, '\0', size);
-		if (getsockname(conn, (struct sockaddr *)&addr, &size) < 0) {
-			oprogname();
-			perror("can't get socket name of connection");
-			exit(1);
-		}
-		if (clientaddr.sin_addr.s_addr != addr.sin_addr.s_addr) {
-			oprogname();
-			perror("connection from non-local host refused");
-			fprintf(stderr, "(addr=%lx, clientaddr=%lx)\n",
-				ntohl(addr.sin_addr.s_addr),
-				ntohl(clientaddr.sin_addr.s_addr));
-			close(conn);
-			continue;
-		}
-		if (i == 4) {
-			close(conn);
-			break;
-		}
-		create_thread(conn, &clientaddr);
-	}
+        size = sizeof addr;
+        memset((char *) &addr, '\0', size);
+        if (getsockname(conn, (struct sockaddr *)&addr, &size) < 0) {
+            oprogname();
+            perror("can't get socket name of connection");
+            exit(1);
+        }
+        if (clientaddr.sin_addr.s_addr != addr.sin_addr.s_addr) {
+            oprogname();
+            perror("connection from non-local host refused");
+            fprintf(stderr, "(addr=%lx, clientaddr=%lx)\n",
+                ntohl(addr.sin_addr.s_addr),
+                ntohl(clientaddr.sin_addr.s_addr));
+            close(conn);
+            continue;
+        }
+        if (i == 4) {
+            close(conn);
+            break;
+        }
+        create_thread(conn, &clientaddr);
+    }
 
-	close(sock);
+    close(sock);
 
-	if (gtstate) {
-		PyEval_AcquireThread(gtstate);
-		gtstate = NULL;
-		Py_Finalize();
-		/* And a second time, just because we can. */
-		Py_Finalize(); /* This should be harmless. */
-	}
-	exit(0);
+    if (gtstate) {
+        PyEval_AcquireThread(gtstate);
+        gtstate = NULL;
+        Py_Finalize();
+        /* And a second time, just because we can. */
+        Py_Finalize(); /* This should be harmless. */
+    }
+    exit(0);
 }
 
 static void
 create_thread(int conn, struct sockaddr_in *addr)
 {
-	struct workorder *work;
-	pthread_t tdata;
+    struct workorder *work;
+    pthread_t tdata;
 
-	work = malloc(sizeof(struct workorder));
-	if (work == NULL) {
-		oprogname();
-		fprintf(stderr, "out of memory for thread.\n");
-		close(conn);
-		return;
-	}
-	work->conn = conn;
-	work->addr = *addr;
+    work = malloc(sizeof(struct workorder));
+    if (work == NULL) {
+        oprogname();
+        fprintf(stderr, "out of memory for thread.\n");
+        close(conn);
+        return;
+    }
+    work->conn = conn;
+    work->addr = *addr;
 
-	init_python();
+    init_python();
 
-	if (pthread_create(&tdata, NULL, (void *)service_thread, work) < 0) {
-		oprogname();
-		perror("can't create new thread");
-		close(conn);
-		return;
-	}
+    if (pthread_create(&tdata, NULL, (void *)service_thread, work) < 0) {
+        oprogname();
+        perror("can't create new thread");
+        close(conn);
+        return;
+    }
 
-	if (pthread_detach(tdata) < 0) {
-		oprogname();
-		perror("can't detach from thread");
-	}
+    if (pthread_detach(tdata) < 0) {
+        oprogname();
+        perror("can't detach from thread");
+    }
 }
 
 static PyThreadState *the_tstate;
@@ -219,152 +219,152 @@
 static void
 init_python(void)
 {
-	if (gtstate)
-		return;
-	Py_Initialize(); /* Initialize the interpreter */
-	PyEval_InitThreads(); /* Create (and acquire) the interpreter lock */
-	gtstate = PyEval_SaveThread(); /* Release the thread state */
+    if (gtstate)
+        return;
+    Py_Initialize(); /* Initialize the interpreter */
+    PyEval_InitThreads(); /* Create (and acquire) the interpreter lock */
+    gtstate = PyEval_SaveThread(); /* Release the thread state */
 }
 
 static void *
 service_thread(struct workorder *work)
 {
-	FILE *input, *output;
+    FILE *input, *output;
 
-	fprintf(stderr, "Start thread for connection %d.\n", work->conn);
+    fprintf(stderr, "Start thread for connection %d.\n", work->conn);
 
-	ps();
+    ps();
 
-	input = fdopen(work->conn, "r");
-	if (input == NULL) {
-		oprogname();
-		perror("can't create input stream");
-		goto done;
-	}
+    input = fdopen(work->conn, "r");
+    if (input == NULL) {
+        oprogname();
+        perror("can't create input stream");
+        goto done;
+    }
 
-	output = fdopen(work->conn, "w");
-	if (output == NULL) {
-		oprogname();
-		perror("can't create output stream");
-		fclose(input);
-		goto done;
-	}
+    output = fdopen(work->conn, "w");
+    if (output == NULL) {
+        oprogname();
+        perror("can't create output stream");
+        fclose(input);
+        goto done;
+    }
 
-	setvbuf(input, NULL, _IONBF, 0);
-	setvbuf(output, NULL, _IONBF, 0);
+    setvbuf(input, NULL, _IONBF, 0);
+    setvbuf(output, NULL, _IONBF, 0);
 
-	run_interpreter(input, output);
+    run_interpreter(input, output);
 
-	fclose(input);
-	fclose(output);
+    fclose(input);
+    fclose(output);
 
   done:
-	fprintf(stderr, "End thread for connection %d.\n", work->conn);
-	close(work->conn);
-	free(work);
+    fprintf(stderr, "End thread for connection %d.\n", work->conn);
+    close(work->conn);
+    free(work);
 }
 
 static void
 oprogname(void)
 {
-	int save = errno;
-	fprintf(stderr, "%s: ", progname);
-	errno = save;
+    int save = errno;
+    fprintf(stderr, "%s: ", progname);
+    errno = save;
 }
 
 static void
 run_interpreter(FILE *input, FILE *output)
 {
-	PyThreadState *tstate;
-	PyObject *new_stdin, *new_stdout;
-	PyObject *mainmod, *globals;
-	char buffer[1000];
-	char *p, *q;
-	int n, end;
+    PyThreadState *tstate;
+    PyObject *new_stdin, *new_stdout;
+    PyObject *mainmod, *globals;
+    char buffer[1000];
+    char *p, *q;
+    int n, end;
 
-	PyEval_AcquireLock();
-	tstate = Py_NewInterpreter();
-	if (tstate == NULL) {
-		fprintf(output, "Sorry -- can't create an interpreter\n");
-		return;
-	}
+    PyEval_AcquireLock();
+    tstate = Py_NewInterpreter();
+    if (tstate == NULL) {
+        fprintf(output, "Sorry -- can't create an interpreter\n");
+        return;
+    }
 
-	mainmod = PyImport_AddModule("__main__");
-	globals = PyModule_GetDict(mainmod);
-	Py_INCREF(globals);
+    mainmod = PyImport_AddModule("__main__");
+    globals = PyModule_GetDict(mainmod);
+    Py_INCREF(globals);
 
-	new_stdin = PyFile_FromFile(input, "<socket-in>", "r", NULL);
-	new_stdout = PyFile_FromFile(output, "<socket-out>", "w", NULL);
+    new_stdin = PyFile_FromFile(input, "<socket-in>", "r", NULL);
+    new_stdout = PyFile_FromFile(output, "<socket-out>", "w", NULL);
 
-	PySys_SetObject("stdin", new_stdin);
-	PySys_SetObject("stdout", new_stdout);
-	PySys_SetObject("stderr", new_stdout);
+    PySys_SetObject("stdin", new_stdin);
+    PySys_SetObject("stdout", new_stdout);
+    PySys_SetObject("stderr", new_stdout);
 
-	for (n = 1; !PyErr_Occurred(); n++) {
-		Py_BEGIN_ALLOW_THREADS
-		fprintf(output, "%d> ", n);
-		p = fgets(buffer, sizeof buffer, input);
-		Py_END_ALLOW_THREADS
+    for (n = 1; !PyErr_Occurred(); n++) {
+        Py_BEGIN_ALLOW_THREADS
+        fprintf(output, "%d> ", n);
+        p = fgets(buffer, sizeof buffer, input);
+        Py_END_ALLOW_THREADS
 
-		if (p == NULL)
-			break;
-		if (p[0] == '\377' && p[1] == '\354')
-			break;
+        if (p == NULL)
+            break;
+        if (p[0] == '\377' && p[1] == '\354')
+            break;
 
-		q = strrchr(p, '\r');
-		if (q && q[1] == '\n' && q[2] == '\0') {
-			*q++ = '\n';
-			*q++ = '\0';
-		}
+        q = strrchr(p, '\r');
+        if (q && q[1] == '\n' && q[2] == '\0') {
+            *q++ = '\n';
+            *q++ = '\0';
+        }
 
-		while (*p && isspace(*p))
-			p++;
-		if (p[0] == '#' || p[0] == '\0')
-			continue;
+        while (*p && isspace(*p))
+            p++;
+        if (p[0] == '#' || p[0] == '\0')
+            continue;
 
-		end = run_command(buffer, globals);
-		if (end < 0)
-			PyErr_Print();
+        end = run_command(buffer, globals);
+        if (end < 0)
+            PyErr_Print();
 
-		if (end)
-			break;
-	}
+        if (end)
+            break;
+    }
 
-	Py_XDECREF(globals);
-	Py_XDECREF(new_stdin);
-	Py_XDECREF(new_stdout);
+    Py_XDECREF(globals);
+    Py_XDECREF(new_stdin);
+    Py_XDECREF(new_stdout);
 
-	Py_EndInterpreter(tstate);
-	PyEval_ReleaseLock();
+    Py_EndInterpreter(tstate);
+    PyEval_ReleaseLock();
 
-	fprintf(output, "Goodbye!\n");
+    fprintf(output, "Goodbye!\n");
 }
 
 static int
 run_command(char *buffer, PyObject *globals)
 {
-	PyObject *m, *d, *v;
-	fprintf(stderr, "run_command: %s", buffer);
-	if (strchr(buffer, '\n') == NULL)
-		fprintf(stderr, "\n");
-	v = PyRun_String(buffer, Py_single_input, globals, globals);
-	if (v == NULL) {
-		if (PyErr_Occurred() == PyExc_SystemExit) {
-			PyErr_Clear();
-			return 1;
-		}
-		PyErr_Print();
-		return 0;
-	}
-	Py_DECREF(v);
-	return 0;
+    PyObject *m, *d, *v;
+    fprintf(stderr, "run_command: %s", buffer);
+    if (strchr(buffer, '\n') == NULL)
+        fprintf(stderr, "\n");
+    v = PyRun_String(buffer, Py_single_input, globals, globals);
+    if (v == NULL) {
+        if (PyErr_Occurred() == PyExc_SystemExit) {
+            PyErr_Clear();
+            return 1;
+        }
+        PyErr_Print();
+        return 0;
+    }
+    Py_DECREF(v);
+    return 0;
 }
 
 static void
 ps(void)
 {
-	char buffer[100];
-	PyOS_snprintf(buffer, sizeof(buffer),
-		      "ps -l -p %d </dev/null | sed 1d\n", getpid());
-	system(buffer);
+    char buffer[100];
+    PyOS_snprintf(buffer, sizeof(buffer),
+                  "ps -l -p %d </dev/null | sed 1d\n", getpid());
+    system(buffer);
 }