--- src/zope/browserresource/file.py.orig	2009-08-25 05:54:46 UTC
+++ src/zope/browserresource/file.py
@@ -164,14 +164,14 @@ class FileResource(BrowserView, Resource):
             # understand the screwy date string as a lucky side effect
             # of the way they parse it).
             try:
-                mod_since = long(mktime_tz(parsedate_tz(header)))
+                mod_since = int(mktime_tz(parsedate_tz(header)))
             except:
                 mod_since = None
             if mod_since is not None:
                 if getattr(file, 'lmt', None):
-                    last_mod = long(file.lmt)
+                    last_mod = int(file.lmt)
                 else:
-                    last_mod = 0L
+                    last_mod = 0
                 if last_mod > 0 and last_mod <= mod_since:
                     response.setStatus(304)
                     return ''