Here is what I use to generate a uuid, this was taken from pyro (which
uses MIT license).
usage
import from XXXX import getGUID
uid = getGUID()
print uid
Don't know if this is useful for this case,
Mike
------------------------------------------------------------------------------------
import os, sys
import time, random
from threading import Lock
_getGUID_counter=0 # extra safeguard against double numbers
_getGUID_lock=Lock()
if os.name=='java':
def getGUID():
# Jython uses java's own ID routine used by RMI
import java.rmi.dgc
return java.rmi.dgc.VMID().toString().replace(':','-')
else:
import socket, binascii
def getGUID():
# Generate readable GUID string.
# The GUID is constructed as follows: hexlified string of
# AAAAAAAA-AAAABBBB-BBBBBBBB-BBCCCCCC (a 128-bit number in
hex)
# where A=network address, B=timestamp, C=random.
# The 128 bit number is returned as a string of 16 8-bits
characters.
# For A: should use the machine's MAC ethernet address, but
there is no
# portable way to get it... use the IP address + 2 bytes
process id.
ip=getIPAddress()
if ip:
networkAddrStr=binascii.hexlify(socket.inet_aton(ip))+"%04x" %
os.getpid()
else:
# can't get IP address... use another value, like our
Python id() and PID
Log.warn('getGUID','Can\'t get IP address')
try:
ip=os.getpid()
except:
ip=0
ip += id(getGUID)
networkAddrStr = "%08lx%04x" % (ip, os.getpid())
_getGUID_lock.acquire() # cannot generate multiple GUIDs at
once
global _getGUID_counter
t1=time.time()*100 +_getGUID_counter
_getGUID_counter+=1
_getGUID_lock.release()
t2=int((t1*time.clock())%sys.maxint) & 0xffffff
t1=int(t1%sys.maxint)
timestamp = (long(t1) << 24) | t2
r2=(random.randint(0,sys.maxint/2)>>4) & 0xffff
r3=(random.randint(0,sys.maxint/2)>>5) & 0xff
return networkAddrStr+'%014x%06x' % (timestamp, (r2<<8)|r3 )
#------ Get the hostname (possibly of other machines) (returns None on
error)
def getHostname(ip=None):
try:
if ip:
(hn,alias,ips) = socket.gethostbyaddr(ip)
return hn
else:
return socket.gethostname()
except socket.error:
return None
#------ Get IP address (return None on error)
def getIPAddress(host=None):
try:
return socket.gethostbyname(host or getHostname())
except socket.error:
return None
