[sqlmap-users] hello may i know why i got this ?!

[Bola A. <man...@gm...>]

C:\Python26>python c:\xd\sqlmap.py -h

[00:25:06] [CRITICAL] unhandled exception in sqlmap/1.0-dev, retry your run
with
 the latest development version from the GitHub repository. If the
exception per
sists, please send by e-mail to 'sql...@li...' or
open a n
ew issue at 'https://github.com/sqlmapproject/sqlmap/issues/new' with the
follow
ing text and any information required to reproduce the bug. The developers
will
try to reproduce the bug, fix it accordingly and get back to you.
sqlmap version: 1.0-dev
Python version: 2.6
Operating system: nt
Command line: c:\xd\sqlmap.py -h
Technique: None
Back-end DBMS: None (identified)
←[41m←[37mTraceback (most recent call last):
  File "c:\xd\sqlmap.py", line 71, in main
    cmdLineOptions.update(cmdLineParser().__dict__)
  File "c:\xd\lib\parse\cmdline.py", line 767, in cmdLineParser
    (args, _) = parser.parse_args(args)
  File "C:\Python26\lib\optparse.py", line 1378, in parse_args
    stop = self._process_args(largs, rargs, values)
  File "C:\Python26\lib\optparse.py", line 1422, in _process_args
    self._process_short_opts(rargs, values)
  File "C:\Python26\lib\optparse.py", line 1529, in _process_short_opts
    option.process(opt, value, values, self)
  File "C:\Python26\lib\optparse.py", line 782, in process
    self.action, self.dest, opt, value, values, parser)
  File "C:\Python26\lib\optparse.py", line 804, in take_action
    parser.print_help()
  File "C:\Python26\lib\optparse.py", line 1648, in print_help
    file.write(self.format_help().encode(encoding, "replace"))
LookupError: unknown encoding: cp720
←[0m
[*] shutting down at 00:25:06

btw am using win7 64x and python26
Thanks in advance