diff --git a/Tools/modulator/Templates/module_method b/Tools/modulator/Templates/module_method
index 9e6c0d2..3048b1f 100644
--- a/Tools/modulator/Templates/module_method
+++ b/Tools/modulator/Templates/module_method
@@ -4,9 +4,7 @@
 ;
 
 static PyObject *
-$abbrev$_$method$(self, args)
-	PyObject *self;	/* Not used */
-	PyObject *args;
+$abbrev$_$method$(PyObject *self /* Not used */, PyObject *args)
 {
 
 	if (!PyArg_ParseTuple(args, ""))
diff --git a/Tools/modulator/Templates/object_method b/Tools/modulator/Templates/object_method
index 9541494..b15162c 100644
--- a/Tools/modulator/Templates/object_method
+++ b/Tools/modulator/Templates/object_method
@@ -4,9 +4,7 @@
 ;
 
 static PyObject *
-$abbrev$_$method$(self, args)
-	$abbrev$object *self;
-	PyObject *args;
+$abbrev$_$method$($abbrev$object *self, PyObject *args)
 {
 	if (!PyArg_ParseTuple(args, ""))
 		return NULL;
diff --git a/Tools/modulator/Templates/object_structure b/Tools/modulator/Templates/object_structure
index 4bb92ef..573ac8d 100644
--- a/Tools/modulator/Templates/object_structure
+++ b/Tools/modulator/Templates/object_structure
@@ -12,9 +12,7 @@
 };
 
 static PyObject *
-$abbrev$_getattr(self, name)
-	$abbrev$object *self;
-	char *name;
+$abbrev$_getattr($abbrev$object *self, char *name)
 {
 	PyObject *rv;
 	
@@ -28,10 +26,7 @@
 
 
 static int
-$abbrev$_setattr(self, name, v)
-	$abbrev$object *self;
-	char *name;
-	PyObject *v;
+$abbrev$_setattr($abbrev$object *self, char *name, PyObject *v)
 {
 	/* XXXX Add your own setattr code here */
 	if ( v == NULL ) {
diff --git a/Tools/modulator/Templates/object_tp_as_mapping b/Tools/modulator/Templates/object_tp_as_mapping
index 440904f..f9213b7 100644
--- a/Tools/modulator/Templates/object_tp_as_mapping
+++ b/Tools/modulator/Templates/object_tp_as_mapping
@@ -2,24 +2,19 @@
 /* Code to access $name$ objects as mappings */
 
 static int
-$abbrev$_length(self)
-	$abbrev$object *self;
+$abbrev$_length($abbrev$object *self)
 {
 	/* XXXX Return the size of the mapping */
 }
 
 static PyObject *
-$abbrev$_subscript(self, key)
-	$abbrev$object *self;
-	PyObject *key;
+$abbrev$_subscript($abbrev$object *self, PyObject *key)
 {
 	/* XXXX Return the item of self indexed by key */
 }
 
 static int
-$abbrev$_ass_sub(self, v, w)
-	$abbrev$object *self;
-	PyObject *v, *w;
+$abbrev$_ass_sub($abbrev$object *self, PyObject *v, PyObject *w)
 {
 	/* XXXX Put w in self under key v */
 	return 0;
diff --git a/Tools/modulator/Templates/object_tp_as_number b/Tools/modulator/Templates/object_tp_as_number
index 2f90edc..e69aa9a 100644
--- a/Tools/modulator/Templates/object_tp_as_number
+++ b/Tools/modulator/Templates/object_tp_as_number
@@ -2,177 +2,140 @@
 /* Code to access $name$ objects as numbers */
 
 static PyObject *
-$abbrev$_add(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_add($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX Add them */
 }
 
 static PyObject *
-$abbrev$_sub(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_sub($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX Subtract them */
 }
 
 static PyObject *
-$abbrev$_mul(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_mul($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX Multiply them */
 }
 
 static PyObject *
-$abbrev$_div(x, y)
-	$abbrev$object *x;
-	$abbrev$object *y;
+$abbrev$_div($abbrev$object *x, $abbrev$object *y)
 {
 	/* XXXX Divide them */
 }
 
 static PyObject *
-$abbrev$_mod(x, y)
-	$abbrev$object *x;
-	$abbrev$object *y;
+$abbrev$_mod($abbrev$object *x, $abbrev$object *y)
 {
 	/* XXXX Modulo them */
 }
 
 static PyObject *
-$abbrev$_divmod(x, y)
-	$abbrev$object *x;
-	$abbrev$object *y;
+$abbrev$_divmod($abbrev$object *x, $abbrev$object *y)
 {
 	/* XXXX Return 2-tuple with div and mod */
 }
 
 static PyObject *
-$abbrev$_pow(v, w, z)
-	$abbrev$object *v;
-	$abbrev$object *w;
-	$abbrev$object *z;
+$abbrev$_pow($abbrev$object *v, $abbrev$object *w, $abbrev$object *z)
 {
 	/* XXXX */
 }				
 
 static PyObject *
-$abbrev$_neg(v)
-	$abbrev$object *v;
+$abbrev$_neg($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_pos(v)
-	$abbrev$object *v;
+$abbrev$_pos($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_abs(v)
-	$abbrev$object *v;
+$abbrev$_abs($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static int
-$abbrev$_nonzero(v)
-	$abbrev$object *v;
+$abbrev$_nonzero($abbrev$object *v)
 {
 	/* XXXX Return 1 if non-zero */
 }
 
 static PyObject *
-$abbrev$_invert(v)
-	$abbrev$object *v;
+$abbrev$_invert($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_lshift(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_lshift($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_rshift(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_rshift($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_and(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_and($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_xor(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_xor($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_or(v, w)
-	$abbrev$object *v;
-	$abbrev$object *w;
+$abbrev$_or($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX */
 }
 
 static int
-$abbrev$_coerce(pv, pw)
-	PyObject **pv;
-	PyObject **pw;
+$abbrev$_coerce(PyObject **pv, PyObject **pw)
 {
 	/* XXXX I haven't a clue... */
 	return 1;
 }
 
 static PyObject *
-$abbrev$_int(v)
-	$abbrev$object *v;
+$abbrev$_int($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_long(v)
-	$abbrev$object *v;
+$abbrev$_long($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_float(v)
-	$abbrev$object *v;
+$abbrev$_float($abbrev$object *v)
 {
 	/* XXXX */
 }
 
 static PyObject *
-$abbrev$_oct(v)
-	$abbrev$object *v;
+$abbrev$_oct($abbrev$object *v)
 {
 	/* XXXX Return object as octal stringobject */
 }
 
 static PyObject *
-$abbrev$_hex(v)
-	$abbrev$object *v;
+$abbrev$_hex($abbrev$object *v)
 {
 	/* XXXX Return object as hex stringobject */
 }
diff --git a/Tools/modulator/Templates/object_tp_as_sequence b/Tools/modulator/Templates/object_tp_as_sequence
index bc0f470..54c0b92 100644
--- a/Tools/modulator/Templates/object_tp_as_sequence
+++ b/Tools/modulator/Templates/object_tp_as_sequence
@@ -2,59 +2,44 @@
 /* Code to handle accessing $name$ objects as sequence objects */
 
 static int
-$abbrev$_length(self)
-	$abbrev$object *self;
+$abbrev$_length($abbrev$object *self)
 {
 	/* XXXX Return the size of the object */
 }
 
 static PyObject *
-$abbrev$_concat(self, bb)
-	$abbrev$object *self;
-	PyObject *bb;
+$abbrev$_concat($abbrev$object *self, PyObject *bb)
 {
 	/* XXXX Return the concatenation of self and bb */
 }
 
 static PyObject *
-$abbrev$_repeat(self, n)
-	$abbrev$object *self;
-	int n;
+$abbrev$_repeat($abbrev$object *self, int n)
 {
 	/* XXXX Return a new object that is n times self */
 }
 
 static PyObject *
-$abbrev$_item(self, i)
-	$abbrev$object *self;
-	int i;
+$abbrev$_item($abbrev$object *self, int i)
 {
 	/* XXXX Return the i-th object of self */
 }
 
 static PyObject *
-$abbrev$_slice(self, ilow, ihigh)
-	$abbrev$object *self;
-	int ilow, ihigh;
+$abbrev$_slice($abbrev$object *self, int ilow, int ihigh)
 {
 	/* XXXX Return the ilow..ihigh slice of self in a new object */
 }
 
 static int
-$abbrev$_ass_item(self, i, v)
-	$abbrev$object *self;
-	int i;
-	PyObject *v;
+$abbrev$_ass_item($abbrev$object *self, int i, PyObject *v)
 {
 	/* XXXX Assign to the i-th element of self */
 	return 0;
 }
 
 static int
-$abbrev$_ass_slice(self, ilow, ihigh, v)
-	PyListObject *self;
-	int ilow, ihigh;
-	PyObject *v;
+$abbrev$_ass_slice(PyListObject *self, int ilow, int ihigh, PyObject *v)
 {
 	/* XXXX Replace ilow..ihigh slice of self with v */
 	return 0;
diff --git a/Tools/modulator/Templates/object_tp_call b/Tools/modulator/Templates/object_tp_call
index be4cc4b..a93f17f 100644
--- a/Tools/modulator/Templates/object_tp_call
+++ b/Tools/modulator/Templates/object_tp_call
@@ -1,9 +1,6 @@
 
 static PyObject *
-$abbrev$_call(self, args, kwargs)
-	$abbrev$object *self;
-	PyObject *args;
-	PyObject *kwargs;
+$abbrev$_call($abbrev$object *self, PyObject *args, PyObject *kwargs)
 {
 	/* XXXX Return the result of calling self with argument args */
 }
diff --git a/Tools/modulator/Templates/object_tp_compare b/Tools/modulator/Templates/object_tp_compare
index a2e2e9d..153bae0 100644
--- a/Tools/modulator/Templates/object_tp_compare
+++ b/Tools/modulator/Templates/object_tp_compare
@@ -1,7 +1,6 @@
 
 static int
-$abbrev$_compare(v, w)
-	$abbrev$object *v, *w;
+$abbrev$_compare($abbrev$object *v, $abbrev$object *w)
 {
 	/* XXXX Compare objects and return -1, 0 or 1 */
 }
diff --git a/Tools/modulator/Templates/object_tp_dealloc b/Tools/modulator/Templates/object_tp_dealloc
index ca15c03..440419a 100644
--- a/Tools/modulator/Templates/object_tp_dealloc
+++ b/Tools/modulator/Templates/object_tp_dealloc
@@ -1,7 +1,6 @@
 
 static void
-$abbrev$_dealloc(self)
-	$abbrev$object *self;
+$abbrev$_dealloc($abbrev$object *self)
 {
 	/* XXXX Add your own cleanup code here */
 	PyMem_DEL(self);
diff --git a/Tools/modulator/Templates/object_tp_getattr b/Tools/modulator/Templates/object_tp_getattr
index 8e42aea..6a1b2e8 100644
--- a/Tools/modulator/Templates/object_tp_getattr
+++ b/Tools/modulator/Templates/object_tp_getattr
@@ -1,8 +1,6 @@
 
 static PyObject *
-$abbrev$_getattr(self, name)
-	$abbrev$object *self;
-	char *name;
+$abbrev$_getattr($abbrev$object *self, char *name)
 {
 	/* XXXX Add your own getattr code here */
 	return Py_FindMethod($abbrev$_methods, (PyObject *)self, name);
diff --git a/Tools/modulator/Templates/object_tp_hash b/Tools/modulator/Templates/object_tp_hash
index 1681b4a..2d63f6a 100644
--- a/Tools/modulator/Templates/object_tp_hash
+++ b/Tools/modulator/Templates/object_tp_hash
@@ -1,7 +1,6 @@
 
 static long
-$abbrev$_hash(self)
-	$abbrev$object *self;
+$abbrev$_hash($abbrev$object *self)
 {
 	/* XXXX Return a hash of self (or -1) */
 }
diff --git a/Tools/modulator/Templates/object_tp_print b/Tools/modulator/Templates/object_tp_print
index 017712e..76408d2 100644
--- a/Tools/modulator/Templates/object_tp_print
+++ b/Tools/modulator/Templates/object_tp_print
@@ -1,9 +1,6 @@
 
 static int
-$abbrev$_print(self, fp, flags)
-	$abbrev$object *self;
-	FILE *fp;
-	int flags;
+$abbrev$_print($abbrev$object *self, FILE *fp, int flags)
 {
 	/* XXXX Add code here to print self to fp */
 	return 0;
diff --git a/Tools/modulator/Templates/object_tp_repr b/Tools/modulator/Templates/object_tp_repr
index 16aebc7..f122225 100644
--- a/Tools/modulator/Templates/object_tp_repr
+++ b/Tools/modulator/Templates/object_tp_repr
@@ -1,7 +1,6 @@
 
 static PyObject *
-$abbrev$_repr(self)
-	$abbrev$object *self;
+$abbrev$_repr($abbrev$object *self)
 {
 	PyObject *s;
 
diff --git a/Tools/modulator/Templates/object_tp_setattr b/Tools/modulator/Templates/object_tp_setattr
index 15701b6..dfe4bc8 100644
--- a/Tools/modulator/Templates/object_tp_setattr
+++ b/Tools/modulator/Templates/object_tp_setattr
@@ -1,9 +1,6 @@
 
 static int
-$abbrev$_setattr(self, name, v)
-	$abbrev$object *self;
-	char *name;
-	PyObject *v;
+$abbrev$_setattr($abbrev$object *self, char *name, PyObject *v)
 {
 	/* Set attribute 'name' to value 'v'. v==NULL means delete */
 	
diff --git a/Tools/modulator/Templates/object_tp_str b/Tools/modulator/Templates/object_tp_str
index bed15df..2e3648e 100644
--- a/Tools/modulator/Templates/object_tp_str
+++ b/Tools/modulator/Templates/object_tp_str
@@ -1,7 +1,6 @@
 
 static PyObject *
-$abbrev$_str(self)
-	$abbrev$object *self;
+$abbrev$_str($abbrev$object *self)
 {
 	PyObject *s;
 
diff --git a/Tools/modulator/modulator.py b/Tools/modulator/modulator.py
index add8b6a..cdf6afe 100755
--- a/Tools/modulator/modulator.py
+++ b/Tools/modulator/modulator.py
@@ -30,8 +30,8 @@
 
 oops = 'oops'
 
-IDENTSTARTCHARS = string.ascii_letters + '_'
-IDENTCHARS = string.ascii_letters + string.digits + '_'
+IDENTSTARTCHARS = string.letters + '_'
+IDENTCHARS = string.letters + string.digits + '_'
 
 # Check that string is a legal C identifier
 def checkid(str):
diff --git a/Tools/modulator/varsubst.py b/Tools/modulator/varsubst.py
index 06e9683..71a2b26 100644
--- a/Tools/modulator/varsubst.py
+++ b/Tools/modulator/varsubst.py
@@ -2,37 +2,33 @@
 # Variable substitution. Variables are $delimited$
 #
 import string
-import regex
-import regsub
+import re
 
 error = 'varsubst.error'
 
 class Varsubst:
     def __init__(self, dict):
         self.dict = dict
-        self.prog = regex.compile('\$[a-zA-Z0-9_]*\$')
+        self.prog = re.compile('\$([a-zA-Z0-9_]*)\$')
         self.do_useindent = 0
 
     def useindent(self, onoff):
         self.do_useindent = onoff
         
-    def subst(self, str):
+    def subst(self, s):
         rv = ''
         while 1:
-            pos = self.prog.search(str)
-            if pos < 0:
-                return rv + str
-            if pos:
-                rv = rv + str[:pos]
-                str = str[pos:]
-            len = self.prog.match(str)
-            if len == 2:
+            m = self.prog.search(s)
+            if not m:
+                return rv + s
+            rv = rv + s[:m.start()]
+            s = s[m.end():]
+            if m.end() - m.start() == 2:
                 # Escaped dollar
                 rv = rv + '$'
-                str = str[2:]
+                s = s[2:]
                 continue
-            name = str[1:len-1]
-            str = str[len:]
+            name = m.group(1)
             if not self.dict.has_key(name):
                 raise error, 'No such variable: '+name
             value = self.dict[name]
@@ -44,7 +40,7 @@
         lastnl = string.rfind(old, '\n', 0) + 1
         lastnl = len(old) - lastnl
         sub = '\n' + (' '*lastnl)
-        return regsub.gsub('\n', sub, value)
+        return re.sub('\n', sub, value)
 
 def _test():
     import sys