- Now tzfile() will unpickle to the updated file.

- Adding tzwin.py, contributed by Jeffrey Harris.
- Minor tweaks in setup.py.
- Adding README and example.py.
- Putting old scheduler.py in the sandbox.

8 files changed, 620 insertions, 10 deletions

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..c5b5923
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,259 @@
+A. HISTORY OF THE SOFTWARE
+==========================
+
+Python was created in the early 1990s by Guido van Rossum at Stichting
+Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
+as a successor of a language called ABC.  Guido remains Python's
+principal author, although it includes many contributions from others.
+
+In 1995, Guido continued his work on Python at the Corporation for
+National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
+in Reston, Virginia where he released several versions of the
+software.
+
+In May 2000, Guido and the Python core development team moved to
+BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
+year, the PythonLabs team moved to Digital Creations (now Zope
+Corporation, see http://www.zope.com).  In 2001, the Python Software
+Foundation (PSF, see http://www.python.org/psf/) was formed, a
+non-profit organization created specifically to own Python-related
+Intellectual Property.  Zope Corporation is a sponsoring member of
+the PSF.
+
+All Python releases are Open Source (see http://www.opensource.org for
+the Open Source Definition).  Historically, most, but not all, Python
+releases have also been GPL-compatible; the table below summarizes
+the various releases.
+
+    Release         Derived     Year        Owner       GPL-
+		    from                                compatible? (1)
+
+    0.9.0 thru 1.2              1991-1995   CWI         yes
+    1.3 thru 1.5.2  1.2         1995-1999   CNRI        yes
+    1.6             1.5.2       2000        CNRI        no
+    2.0             1.6         2000        BeOpen.com  no
+    1.6.1           1.6         2001        CNRI        yes (2)
+    2.1             2.0+1.6.1   2001        PSF         no
+    2.0.1           2.0+1.6.1   2001        PSF         yes
+    2.1.1           2.1+2.0.1   2001        PSF         yes
+    2.2             2.1.1       2001        PSF         yes
+    2.1.2           2.1.1       2002        PSF         yes
+    2.1.3           2.1.2       2002        PSF         yes
+    2.2.1           2.2         2002        PSF         yes
+    2.2.2           2.2.1       2002        PSF         yes
+    2.2.3           2.2.2       2003        PSF         yes
+    2.3             2.2.2       2002-2003   PSF         yes
+
+Footnotes:
+
+(1) GPL-compatible doesn't mean that we're distributing Python under
+    the GPL.  All Python licenses, unlike the GPL, let you distribute
+    a modified version without making your changes open source.  The
+    GPL-compatible licenses make it possible to combine Python with
+    other software that is released under the GPL; the others don't.
+
+(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
+    because its license has a choice of law clause.  According to
+    CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
+    is "not incompatible" with the GPL.
+
+Thanks to the many outside volunteers who have worked under Guido's
+direction to make these releases possible.
+
+
+B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
+===============================================================
+
+PSF LICENSE AGREEMENT FOR PYTHON 2.3
+------------------------------------
+
+1. This LICENSE AGREEMENT is between the Python Software Foundation
+("PSF"), and the Individual or Organization ("Licensee") accessing and
+otherwise using Python 2.3 software in source or binary form and its
+associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, PSF
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python 2.3
+alone or in any derivative version, provided, however, that PSF's
+License Agreement and PSF's notice of copyright, i.e., "Copyright (c)
+2001, 2002, 2003 Python Software Foundation; All Rights Reserved" are
+retained in Python 2.3 alone or in any derivative version prepared by
+Licensee.
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python 2.3 or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python 2.3.
+
+4. PSF is making Python 2.3 available to Licensee on an "AS IS"
+basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 2.3 WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+2.3 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 2.3,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. Nothing in this License Agreement shall be deemed to create any
+relationship of agency, partnership, or joint venture between PSF and
+Licensee.  This License Agreement does not grant permission to use PSF
+trademarks or trade name in a trademark sense to endorse or promote
+products or services of Licensee, or any third party.
+
+8. By copying, installing or otherwise using Python 2.3, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
+-------------------------------------------
+
+BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
+
+1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
+office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
+Individual or Organization ("Licensee") accessing and otherwise using
+this software in source or binary form and its associated
+documentation ("the Software").
+
+2. Subject to the terms and conditions of this BeOpen Python License
+Agreement, BeOpen hereby grants Licensee a non-exclusive,
+royalty-free, world-wide license to reproduce, analyze, test, perform
+and/or display publicly, prepare derivative works, distribute, and
+otherwise use the Software alone or in any derivative version,
+provided, however, that the BeOpen Python License is retained in the
+Software, alone or in any derivative version prepared by Licensee.
+
+3. BeOpen is making the Software available to Licensee on an "AS IS"
+basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
+SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
+AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
+DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+5. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+6. This License Agreement shall be governed by and interpreted in all
+respects by the law of the State of California, excluding conflict of
+law provisions.  Nothing in this License Agreement shall be deemed to
+create any relationship of agency, partnership, or joint venture
+between BeOpen and Licensee.  This License Agreement does not grant
+permission to use BeOpen trademarks or trade names in a trademark
+sense to endorse or promote products or services of Licensee, or any
+third party.  As an exception, the "BeOpen Python" logos available at
+http://www.pythonlabs.com/logos.html may be used according to the
+permissions granted on that web page.
+
+7. By copying, installing or otherwise using the software, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
+---------------------------------------
+
+1. This LICENSE AGREEMENT is between the Corporation for National
+Research Initiatives, having an office at 1895 Preston White Drive,
+Reston, VA 20191 ("CNRI"), and the Individual or Organization
+("Licensee") accessing and otherwise using Python 1.6.1 software in
+source or binary form and its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, CNRI
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python 1.6.1
+alone or in any derivative version, provided, however, that CNRI's
+License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
+1995-2001 Corporation for National Research Initiatives; All Rights
+Reserved" are retained in Python 1.6.1 alone or in any derivative
+version prepared by Licensee.  Alternately, in lieu of CNRI's License
+Agreement, Licensee may substitute the following text (omitting the
+quotes): "Python 1.6.1 is made available subject to the terms and
+conditions in CNRI's License Agreement.  This Agreement together with
+Python 1.6.1 may be located on the Internet using the following
+unique, persistent identifier (known as a handle): 1895.22/1013.  This
+Agreement may also be obtained from a proxy server on the Internet
+using the following URL: http://hdl.handle.net/1895.22/1013".
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python 1.6.1 or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python 1.6.1.
+
+4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
+basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. This License Agreement shall be governed by the federal
+intellectual property law of the United States, including without
+limitation the federal copyright law, and, to the extent such
+U.S. federal law does not apply, by the law of the Commonwealth of
+Virginia, excluding Virginia's conflict of law provisions.
+Notwithstanding the foregoing, with regard to derivative works based
+on Python 1.6.1 that incorporate non-separable material that was
+previously distributed under the GNU General Public License (GPL), the
+law of the Commonwealth of Virginia shall govern this License
+Agreement only as to issues arising under or with respect to
+Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in this
+License Agreement shall be deemed to create any relationship of
+agency, partnership, or joint venture between CNRI and Licensee.  This
+License Agreement does not grant permission to use CNRI trademarks or
+trade name in a trademark sense to endorse or promote products or
+services of Licensee, or any third party.
+
+8. By clicking on the "ACCEPT" button where indicated, or by copying,
+installing or otherwise using Python 1.6.1, Licensee agrees to be
+bound by the terms and conditions of this License Agreement.
+
+        ACCEPT
+
+
+CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
+--------------------------------------------------
+
+Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
+The Netherlands.  All rights reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/MANIFEST.in b/MANIFEST.in
index c80deb5..c43833b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,3 @@
-recursive-include dateutil *.py
+recursive-include dateutil *.py *.tar.*
 include setup.py setup.cfg MANIFEST.in README LICENSE Makefile
 include test.py
diff --git a/dateutil/tz.py b/dateutil/tz.py
index fcc14ef..da4a0c0 100644
--- a/dateutil/tz.py
+++ b/dateutil/tz.py
@@ -10,13 +10,22 @@ __license__ = "PSF License"
 import datetime
 import struct
 import time
+import sys
+import os
 
 relativedelta = None
 parser = None
 rrule = None
 
-__all__ = ["tzutc", "tzoffset", "tzlocal", "tzfile",
-           "tzrange", "tzstr", "tzical", "gettz"]
+__all__ = ["tzutc", "tzoffset", "tzlocal", "tzfile", "tzrange",
+           "tzstr", "tzical", "tzwin", "gettz"]
+
+try:
+    import _winreg
+except ImportError:
+    tzwin = None
+else:
+    from dateutil.tzwin import tzwin
 
 ZERO = datetime.timedelta(0)
 EPOCHORDINAL = datetime.datetime.utcfromtimestamp(0).toordinal()
@@ -188,12 +197,12 @@ class tzfile(datetime.tzinfo):
     
     def __init__(self, fileobj):
         if isinstance(fileobj, basestring):
-            self._s = fileobj
+            self._filename = fileobj
             fileobj = open(fileobj)
         elif hasattr(fileobj, "name"):
-            self._s = fileobj.name
+            self._filename = fileobj.name
         else:
-            self._s = `fileobj`
+            self._filename = `fileobj`
 
         # From tzfile(5):
         #
@@ -453,9 +462,12 @@ class tzfile(datetime.tzinfo):
 
 
     def __repr__(self):
-        return "%s(%s)" % (self.__class__.__name__, `self._s`)
+        return "%s(%s)" % (self.__class__.__name__, `self._filename`)
 
-    __reduce__ = object.__reduce__
+    def __reduce__(self):
+        if not os.path.isfile(self._filename):
+            raise ValueError, "Unpickable %s class" % self.__class__.__name__
+        return (self.__class__, (self._filename,))
 
 class tzrange(datetime.tzinfo):
 
@@ -844,8 +856,6 @@ class tzical:
     def __repr__(self):
         return "%s(%s)" % (self.__class__.__name__, `self._s`)
 
-import sys, os
-
 TZFILES = ["/etc/localtime", "localtime"]
 TZPATHS = ["/usr/share/zoneinfo", "/usr/lib/zoneinfo", "/etc/zoneinfo"]
 
diff --git a/dateutil/tzwin.py b/dateutil/tzwin.py
new file mode 100644
index 0000000..1cb1bab
--- /dev/null
+++ b/dateutil/tzwin.py
@@ -0,0 +1,155 @@
+# This code was kindly provided by Jeffrey Harris.
+import _winreg
+import struct
+import datetime
+
+TIMEZONESKEY = r"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones"
+TIMEZONEINFOKEY = r"SYSTEM\CurrentControlSet\Control\TimeZoneInformation"
+HANDLE = _winreg.ConnectRegistry(None, _winreg.HKEY_LOCAL_MACHINE)
+LOCALKEY = _winreg.OpenKey(HANDLE, TIMEZONEINFOKEY)
+TZPARENT = _winreg.OpenKey(HANDLE, TIMEZONESKEY)
+TZPARENTSIZE = _winreg.QueryInfoKey(TZPARENT)[0]
+ONEWEEK = datetime.timedelta(7)
+
+class tzwin(datetime.tzinfo):
+    """tzinfo class based on win32's timezones available in the registry.
+    
+    >>> local = tzwin('Central Standard Time')
+    >>> oct1 = datetime.datetime(month=10, year=2004, day=1, tzinfo=local)
+    >>> dec1 = datetime.datetime(month=12, year=2004, day=1, tzinfo=local)
+    >>> oct1.dst()
+    datetime.timedelta(0, 3600)
+    >>> dec1.dst()
+    datetime.timedelta(0)
+    >>> braz = tzwin('E. South America Standard Time')
+    >>> braz.dst(oct1)
+    datetime.timedelta(0)
+    >>> braz.dst(dec1)
+    datetime.timedelta(0, 3600)
+    
+    """
+    def __init__(self, name):
+        self._info = _tzwininfo(name)
+        
+    def utcoffset(self, dt):
+        if self._isdst(dt):
+            return datetime.timedelta(minutes=self._info.dstoffset)
+        else:
+            return datetime.timedelta(minutes=self._info.stdoffset)
+
+    def dst(self, dt):
+        if self._isdst(dt):
+            minutes = self._info.dstoffset - self._info.stdoffset
+            return datetime.timedelta(minutes=minutes)
+        else:
+            return datetime.timedelta(0)
+        
+    def tzname(self, dt):
+        if self._isdst(dt):
+            return self._info.dstname
+        else:
+            return self._info.stdname
+
+    def list():
+        """Return a list of all time zones known to the system."""
+        return [_winreg.EnumKey(TZPARENT, i) for i in range(TZPARENTSIZE)]
+    list = staticmethod(list)
+    
+    def _isdst(self, dt):
+        i = self._info
+        dston = picknthweekday(dt.year, i.dstmonth, i.dstdayofweek,
+                               i.dsthour, i.dstminute, i.dstweeknumber)
+        dstoff = picknthweekday(dt.year, i.stdmonth, i.stddayofweek,
+                                i.stdhour, i.stdminute, i.stdweeknumber)
+        if dston < dstoff:
+            return dston <= dt.replace(tzinfo=None) < dstoff
+        else:
+            return not dstoff <= dt.replace(tzinfo=None) < dston
+
+    def __repr__(self):
+        return "tzwin(%s)" % repr(self._info.display)
+    
+    __reduce__ = object.__reduce__
+
+class _tzwininfo(object):
+    """Read a registry key for a timezone, expose its contents."""
+    
+    def __init__(self, path):
+        """Load path, or if path is empty, load local time."""
+        if path:
+            keydict=valuestodict(_winreg.OpenKey(TZPARENT, path))
+            self.display = keydict['Display']
+            self.dstname = keydict['Dlt']
+            self.stdname = keydict['Std']
+            
+            #see http://ww_winreg.jsiinc.com/SUBA/tip0300/rh0398.htm
+            tup = struct.unpack('=3l16h', keydict['TZI'])
+            self.stdoffset = -tup[0]-tup[1] #Bias + StandardBias * -1
+            self.dstoffset = self.stdoffset - tup[2] # + DaylightBias * -1
+            
+            offset=3
+            self.stdmonth = tup[1 + offset]
+            self.stddayofweek = tup[2 + offset] #Sunday=0
+            self.stdweeknumber = tup[3 + offset] #Last = 5
+            self.stdhour = tup[4 + offset]
+            self.stdminute = tup[5 + offset]
+            
+            offset=11
+            self.dstmonth = tup[1 + offset]
+            self.dstdayofweek = tup[2 + offset] #Sunday=0
+            self.dstweeknumber = tup[3 + offset] #Last = 5
+            self.dsthour = tup[4 + offset]
+            self.dstminute = tup[5 + offset]
+            
+        else:
+            keydict=valuestodict(LOCALKEY)
+            
+            self.stdname = keydict['StandardName']
+            self.dstname = keydict['DaylightName']
+            
+            sourcekey=_winreg.OpenKey(TZPARENT, self.stdname)
+            self.display = valuestodict(sourcekey)['Display']
+            
+            self.stdoffset = -keydict['Bias']-keydict['StandardBias']
+            self.dstoffset = self.stdoffset - keydict['DaylightBias']
+
+            #see http://ww_winreg.jsiinc.com/SUBA/tip0300/rh0398.htm
+            tup = struct.unpack('=8h', keydict['StandardStart'])
+
+            offset=0
+            self.stdmonth = tup[1 + offset]
+            self.stddayofweek = tup[2 + offset] #Sunday=0
+            self.stdweeknumber = tup[3 + offset] #Last = 5
+            self.stdhour = tup[4 + offset]
+            self.stdminute = tup[5 + offset]
+            
+            tup = struct.unpack('=8h', keydict['DaylightStart'])
+            self.dstmonth = tup[1 + offset]
+            self.dstdayofweek = tup[2 + offset] #Sunday=0
+            self.dstweeknumber = tup[3 + offset] #Last = 5
+            self.dsthour = tup[4 + offset]
+            self.dstminute = tup[5 + offset]
+
+def picknthweekday(year, month, dayofweek, hour, minute, whichweek):
+    """dayofweek == 0 means Sunday, whichweek 5 means last instance"""
+    first = datetime.datetime(year, month, 1, hour, minute)
+    weekdayone = first.replace(day=((dayofweek-first.isoweekday())%7+1))
+    for n in xrange(whichweek):
+        dt = weekdayone+(whichweek-n)*ONEWEEK
+        if dt.month == month:
+            return dt
+
+def valuestodict(key):
+    """Convert a registry key's values to a dictionary."""
+    dict={}
+    size=_winreg.QueryInfoKey(key)[1]
+    for i in xrange(size):
+        dict[_winreg.EnumValue(key, i)[0]]=_winreg.EnumValue(key, i)[1]
+    return dict
+
+def _test():
+    import tzwin, doctest
+    doctest.testmod(tzwin, verbose=0)
+
+if __name__ == '__main__':
+    _test()
diff --git a/dateutil/zoneinfo/__init__.py b/dateutil/zoneinfo/__init__.py
index 8dfd118..73f2390 100644
--- a/dateutil/zoneinfo/__init__.py
+++ b/dateutil/zoneinfo/__init__.py
@@ -7,6 +7,10 @@ __all__ = ["setcachesize", "gettz", "rebuild"]
 CACHE = []
 CACHESIZE = 10
 
+class tzfile(tzfile):
+    def __reduce__(self):
+        return (gettz, (self._filename,))
+
 ZONEINFOFILE = None
 for entry in os.listdir(os.path.dirname(__file__)):
     if entry.startswith("zoneinfo") and ".tar." in entry:
diff --git a/example.py b/example.py
new file mode 100644
index 0000000..f5a8e6f
--- /dev/null
+++ b/example.py
@@ -0,0 +1,15 @@
+from dateutil.relativedelta import *
+from dateutil.easter import *
+from dateutil.rrule import *
+from dateutil.parser import *
+from datetime import *
+import commands
+import os
+now = parse(commands.getoutput("date"))
+today = now.date()
+year = rrule(YEARLY,bymonth=8,bymonthday=13,byweekday=FR)[0].year
+rdelta = relativedelta(easter(year), today)
+print "Today is:", today
+print "Year with next Aug 13th on a Friday is:", year
+print "How far is the Easter of that year:", rdelta
+print "And the Easter of that year is:", today+rdelta
diff --git a/sandbox/scheduler.py b/sandbox/scheduler.py
new file mode 100644
index 0000000..681f442
--- /dev/null
+++ b/sandbox/scheduler.py
@@ -0,0 +1,157 @@
+"""
+Copyright (c) 2003  Gustavo Niemeyer <niemeyer@conectiva.com>
+
+This module offers extensions to the standard python 2.3+
+datetime module.
+"""
+__author__ = "Gustavo Niemeyer <niemeyer@conectiva.com>"
+__license__ = "PSF License"
+
+import datetime
+import thread
+import signal
+import time
+
+class sched:
+
+    def __init__(self, rrule,
+                 tolerance=None, last=None,
+                 execute=None, args=None, kwargs=None):
+        self._rrule = rrule
+        if tolerance:
+            self._tolerance = datetime.timedelta(seconds=tolerance)
+        else:
+            self._tolerance = None
+        self._last = last
+        self._execute = execute
+        self._args = args or ()
+        self._kwargs = kwargs or {}
+
+    def last(self):
+        return self._last
+
+    def next(self, now=None):
+        if not now:
+            now = datetime.datetime.now()
+        return self._rrule.after(now)
+
+    def check(self, now=None, readonly=False):
+        if not now:
+            now = datetime.datetime.now()
+        item = self._rrule.before(now, inc=True)
+        if (item is None or item == self._last or
+            (self._tolerance and item+self._tolerance < now)):
+            return None
+        if not readonly:
+            self._last = item
+            if self._execute:
+                self._execute(*self._args, **self._kwargs)
+        return item
+
+
+class schedset:
+    def __init__(self):
+        self._scheds = []
+
+    def add(self, sched):
+        self._scheds.append(sched)
+
+    def next(self, now=None):
+        if not now:
+            now = datetime.datetime.now()
+        res = None
+        for sched in self._scheds:
+            next = sched.next(now)
+            if next and (not res or next < res):
+                res = next
+        return res
+
+    def check(self, now=None, readonly=False):
+        if not now:
+            now = datetime.datetime.now()
+        res = False
+        for sched in self._scheds:
+            if sched.check(now, readonly):
+                res = True
+        return res
+
+
+class schedthread:
+    
+    def __init__(self, sched, lock=None):
+        self._sched = sched
+        self._lock = lock
+        self._running = False
+
+    def running(self):
+        return self._running
+
+    def run(self):
+        self._running = True
+        thread.start_new_thread(self._loop, ())
+        
+    def stop(self):
+        self._running = False
+
+    def _loop(self):
+        while self._running:
+            if self._lock:
+                self._lock.acquire()
+            now = datetime.datetime.now()
+            self._sched.check(now)
+            if self._lock:
+                self._lock.release()
+            seconds = _seconds_left(self._sched.next(now))
+            if seconds is None:
+                self._running = False
+                break
+            if self._running:
+                time.sleep(seconds)
+
+
+class schedalarm:
+    
+    def __init__(self, sched, lock=None):
+        self._sched = sched
+        self._lock = lock
+        self._running = False
+
+    def running(self):
+        return self._running
+
+    def run(self):
+        self._running = True
+        signal.signal(signal.SIGALRM, self._handler)
+        self._handler(None, None)
+        
+    def stop(self):
+        self._running = False
+
+    def _handler(self, sig, frame):
+        while self._running:
+            if self._lock:
+                self._lock.acquire()
+            now = datetime.datetime.now()
+            self._sched.check(now)
+            if self._lock:
+                self._lock.release()
+            if self._running:
+                seconds = _seconds_left(self._sched.next(now))
+                if seconds:
+                    signal.alarm(seconds)
+                    break
+                elif seconds is None:
+                    self._running = False
+                    break
+
+
+def _seconds_left(next):
+    if not next:
+        return None
+    now = datetime.datetime.now()
+    delta = next-now
+    seconds = delta.days*86400+delta.seconds
+    if seconds < 0:
+        seconds = 0
+    return seconds
+
diff --git a/setup.py b/setup.py
index bcf8029..d8067e9 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,13 @@
 #!/usr/bin/python
+from distutils.sysconfig import get_python_lib
 from distutils.core import setup
+import glob
+import os
+
+if os.path.isfile("MANIFEST"):
+    os.unlink("MANIFEST")
+
+PYTHONLIB = get_python_lib(1)
 
 setup(name="python-dateutil",
       version = "0.5",
@@ -14,4 +22,6 @@ The dateutil module provides powerful extensions to the standard
 datetime module, available in Python 2.3+.
 """,
       packages = ["dateutil"],
+      data_files = [(PYTHONLIB+"/dateutil/zoneinfo", 
+                     glob.glob("dateutil/zoneinfo/zoneinfo*.tar.*"))],
       )