diff --git a/py/__init__.py b/py/__init__.py
index dd0d1d03c..7bbf46eab 100644
--- a/py/__init__.py
+++ b/py/__init__.py
@@ -26,8 +26,8 @@ version = "1.0.0a1"
 
 initpkg(__name__,
     description = "pylib and py.test: agile development and test support library",
-    revision = int('$LastChangedRevision: 57754 $'.split(':')[1][:-1]),
-    lastchangedate = '$LastChangedDate: 2008-09-02 14:24:15 +0200 (Tue, 02 Sep 2008) $',
+    revision = int('$LastChangedRevision: 58190 $'.split(':')[1][:-1]),
+    lastchangedate = '$LastChangedDate: 2008-09-17 10:50:04 +0200 (Wed, 17 Sep 2008) $',
     version = version, 
     url = "http://pylib.org", 
     download_url = "http://codespeak.net/py/0.9.2/download.html",
@@ -60,6 +60,7 @@ initpkg(__name__,
     'cmdline.pycountloc'     : ('./cmdline/pycountloc.py', 'main',),
     'cmdline.pycleanup'      : ('./cmdline/pycleanup.py', 'main',),
     'cmdline.pywhich'        : ('./cmdline/pywhich.py', 'main',),
+    'cmdline.pysvnwcrevert'  : ('./cmdline/pysvnwcrevert.py', 'main',),
 
     # helpers for use from test functions or collectors
     'test.__doc__'           : ('./test/__init__.py', '__doc__'),
diff --git a/py/bin/py.svnwcrevert b/py/bin/py.svnwcrevert
new file mode 100755
index 000000000..67a1ec7f6
--- /dev/null
+++ b/py/bin/py.svnwcrevert
@@ -0,0 +1,3 @@
+#!/usr/bin/env python
+from _findpy import py
+py.cmdline.pysvnwcrevert()
\ No newline at end of file
diff --git a/py/bin/win32/py.svnwcrevert.cmd b/py/bin/win32/py.svnwcrevert.cmd
new file mode 100644
index 000000000..d681b9c0e
--- /dev/null
+++ b/py/bin/win32/py.svnwcrevert.cmd
@@ -0,0 +1,2 @@
+@echo off
+python "%~dp0\..\py.svnwcrevert" %*
\ No newline at end of file
diff --git a/py/cmdline/pysvnwcrevert.py b/py/cmdline/pysvnwcrevert.py
new file mode 100755
index 000000000..708f766cd
--- /dev/null
+++ b/py/cmdline/pysvnwcrevert.py
@@ -0,0 +1,49 @@
+#! /usr/bin/env python
+"""\
+py.svnwcrevert WCPATH
+
+Running this script and then 'svn up' puts the working copy WCPATH in a state
+as clean as a fresh check-out.
+
+WARNING: you'll loose all local changes, obviously!
+
+This script deletes all files that have been modified
+or that svn doesn't explicitly know about, including svn:ignored files
+(like .pyc files, hint hint).
+
+The goal of this script is to leave the working copy with some files and
+directories possibly missing, but - most importantly - in a state where
+the following 'svn up' won't just crash.
+"""
+
+import py
+
+def kill(p, root):
+    print '<    %s' % (p.relto(root),)
+    p.remove(rec=1)
+
+def svnwcrevert(path, root=None):
+    if root is None:
+        root = path
+    wcpath = py.path.svnwc(path)
+    try:
+        st = wcpath.status()
+    except ValueError:   # typically, "bad char in wcpath"
+        kill(path, root)
+        return
+    for p in path.listdir():
+        if p.basename == '.svn':
+            continue
+        wcp = py.path.svnwc(p)
+        if wcp not in st.unchanged and wcp not in st.external:
+            kill(p, root)
+        elif p.check(dir=1):
+            svnwcrevert(p, root)
+
+
+def main():
+    import sys
+    if len(sys.argv) != 2:
+        print __doc__
+        sys.exit(2)
+    svnwcrevert(py.path.local(sys.argv[1]))