Fix up standard file header and set svn:keywords=Id. Just some cosmetics

lib/python/Products/PageTemplates/PathIterator.py

@@ -10,15 +10,13 @@
 # FOR A PARTICULAR PURPOSE
 #
 ##############################################################################
-
 """Path Iterator
 
 A TALES Iterator with the ability to use first() and last() on
 subpaths of elements.
-"""
-
-__version__='$Revision: 1.4 $'[11:-2]
 
+$Id$
+"""
 import TALES
 from Expressions import restrictedTraverse, Undefs, getSecurityManager
 

lib/python/Products/PageTemplates/PythonExpr.py

@@ -10,15 +10,13 @@
 # FOR A PARTICULAR PURPOSE
 #
 ##############################################################################
-
 """Generic Python Expression Handler
-"""
-
-__version__='$Revision: 1.13 $'[11:-2]
 
+$Id$
+"""
 from TALES import CompilerError
 from sys import exc_info
-from DeferExpr import DeferWrapper
+from zope.tales.expressions import DeferWrapper
 
 class getSecurityManager:
     '''Null security manager'''

lib/python/Products/PageTemplates/ZPythonExpr.py

@@ -10,15 +10,13 @@
 # FOR A PARTICULAR PURPOSE
 #
 ##############################################################################
-
 """Old Zope-specific Python Expression Handler
 
 Handler for Python expressions, using the pre-Python 2.1 restriction
 machinery from PythonScripts.
-"""
-
-__version__='$Revision: 1.8 $'[11:-2]
 
+$Id$
+"""
 from AccessControl import getSecurityManager
 from Products.PythonScripts.Guarded import _marker, \
      GuardedBlock, theGuard, safebin, WriteGuard, ReadGuard, UntupleFunction

lib/python/Products/PageTemplates/ZRPythonExpr.py

@@ -10,14 +10,12 @@
 # FOR A PARTICULAR PURPOSE
 #
 ##############################################################################
-
 """Zope-specific Python Expression Handler
 
 Handler for Python expressions that uses the RestrictedPython package.
-"""
-
-__version__='$Revision: 1.11 $'[11:-2]
 
+$Id$
+"""
 from AccessControl import safe_builtins
 from AccessControl.ZopeGuards import guarded_getattr, get_safe_globals
 from RestrictedPython import compile_restricted_eval

lib/python/Products/PageTemplates/__init__.py

@@ -10,14 +10,13 @@
 # FOR A PARTICULAR PURPOSE
 #
 ##############################################################################
-__doc__='''Package wrapper for Page Templates
+"""Package wrapper for Page Templates
 
 This wrapper allows the Page Template modules to be segregated in a
 separate package.
 
-$Id$'''
-__version__='$$'[11:-2]
-
+$Id$
+"""
 
 # Placeholder for Zope Product data
 misc_ = {}