human
Solve the following python programming problem given the following code:
def _requires_unix_version(sysname, min_version) : 
    "Decorator raising SkipTest if the OS is `sysname` and the version is less
    than `min_version`.

    For example, @_requires_unix_version('FreeBSD', (7, 2)) raises SkipTest if
    the FreeBSD version is less than 7.2.
    " 
    def decorator(func) : 
        @ functools.wraps (func) 
        def wrapper(* args, **kw) : 
            if (platform.system () == sysname) : 
                version_txt = platform.release ().split ('-', 1) [0] 
                try : 
                    version = tuple (map (int, version_txt.split ('.'))) 
except ValueError : 
                    pass 
else : 
                    if (version < min_version) : 
                        min_version_txt = '.'.join (map (str, min_version)) 
                        raise unittest.SkipTest (('%s version %s or higher required, not %s' % (sysname, min_version_txt, version_txt))) 
return func (* args, ** kw) 
wrapper.min_version = min_version 
        return wrapper 
return sysname 

    
    

    Fix the buggy line: return sysname
assistant
#Here is Python program to fix the buggy line: return sysname
.

return def decorator(