Everybody has a s3 boto copy. Here is mine

s3copy.py

#!/usr/bin/python

#
# I'm pretty sure there's better scripts
#

import sys, getopt, boto, gzip, StringIO
from boto.s3.connection import S3Connection
from boto.s3.key import Key
from socket import gethostname

bucket = ''
file = ''
targetfile = ''
contenttype = ''
acl = 'public-read'
encode = None

def usage():
   print 'usage: s3copy.py -b <bucket> -f <inputfile> -t <targetfile> -c <contenttype> -p <acl> -e <encode>'
   print '    --bucket,       -b  : bucket on S3 to copy file to ( will create if not there)'
   print '    --file  ,       -f  : input file to copy to S3'
   print '    --targetfile,   -t  : targetfile name'   
   print '    --contenttype,  -c  : content type'
   print '    --acl,          -p  : acl publish setting'
   print '    --encode,       -e  : encode (gzip)'
   sys.exit()

def loadvalues(argv):
   global bucket
   global file
   global targetfile
   global contenttype
   global acl   
   global encode
   try:
      opts, args = getopt.getopt(argv,"hk:b:f:t:c:p:e:",["bucket=","file=","targetfile=","contenttype=","acl=","encode="])
   except getopt.GetoptError:
      usage()
   for opt, arg in opts:
      if opt == '-h':
         usage()
      elif opt in ("-b", "--bucket"):
         bucket = arg         
      elif opt in ("-f", "--file"):
         file = arg
      elif opt in ("-t", "--targetfile"):
         targetfile = arg
      elif opt in ("-c", "--contenttype"):
         contenttype = arg         
      elif opt in ("-p", "--acl"):
         acl = arg
      elif opt in ("-e", "--encode"):
         encode = arg

def copy():
   con = S3Connection()
   targetBucket = con.create_bucket(bucket)
   k = Key(targetBucket)
   print 'bucket:', bucket, 'file:', file, 'target:', targetfile, 'content-type:', contenttype, 'acl:', acl, 'encode:', encode
   k.key = targetfile
   k.set_metadata('Content-Type', contenttype)
   
   if encode is not None and encode == 'gzip':
       k.set_metadata('Content-Encoding', 'gzip')
       
       gzmem = StringIO.StringIO()
       gzip_file = gzip.GzipFile(fileobj=gzmem, mode='w')       
       with open(file, 'rb') as outfile:
           gzip_file.write(outfile.read())
       gzip_file.close()
       k.set_contents_from_string(gzmem.getvalue())
   else:
       k.set_contents_from_filename(file)
   

   if acl in ('private', 'public-read', 'public-read-write', 'authenticated-read'):
       k.set_acl(acl)

if __name__ == "__main__":
    loadvalues(sys.argv[1:])
    copy();

s3get.py

#!/usr/bin/python

#
# I'm pretty sure there's better scripts
#

import sys, getopt, boto, gzip, StringIO
from boto.s3.connection import S3Connection
from boto.s3.key import Key
from socket import gethostname



bucket = ''
file = ''
targetfile = ''
acl = 'public-read'
encode = None

def usage():
   print 'usage: s3get.py -b <bucket> -f <inputfile> -t <targetfile>'
   print '    --bucket,       -b  : bucket on S3 to copy file to ( will create if not there)'
   print '    --file  ,       -f  : input file to copy to S3'
   print '    --targetfile,   -t  : targetfile name'   
   sys.exit()

def loadvalues(argv):
   global bucket
   global file
   global targetfile
   try:
      opts, args = getopt.getopt(argv,"hk:b:f:t:",["bucket=","file=","targetfile="])
   except getopt.GetoptError:
      usage()
   for opt, arg in opts:
      if opt == '-h':
         usage()
      elif opt in ("-b", "--bucket"):
         bucket = arg         
      elif opt in ("-f", "--file"):
         file = arg
      elif opt in ("-t", "--targetfile"):
         targetfile = arg
      
def get():
   global bucket
   global file
   global targetfile
   con = S3Connection()
   targetBucket = con.create_bucket(bucket)
   k = Key(targetBucket)
   print 'bucket:', bucket, 'file:', file, 'target:', targetfile
   k.key = targetfile
   k.get_contents_to_filename(file)

if __name__ == "__main__":
    loadvalues(sys.argv[1:])
    get();

twisted_shutdown_handler_demo.py

from twisted.internet import reactor
import signal
def loop(s):
    print 'delay', s
    reactor.callLater(s,loop,s)
reactor.callLater(0,loop,5)
def shutdown_handler():
    print 'shutdown_handler'
reactor.addSystemEventTrigger('before', 'shutdown', shutdown_handler)
reactor.run()