human
Solve the following python programming problem given the following code:
def AnalyzeClient(self, client) : 
    'Finds the client_id and keywords for a client.

    Args:
      client: A VFSGRRClient record to find keywords for.

    Returns:
      A tuple (client_id, keywords) where client_id is the client identifier and
    keywords is a list of keywords related to client.
    ' 
    client_id = self._ClientIdFromURN (client.urn) 
    keywords = [self._NormalizeKeyword (client_id), '.'] 
    def TryAppend(prefix, keyword) : 
        if keyword : 
            keyword_string = self._NormalizeKeyword (utils.SmartStr (keyword)) 
            keywords.append (keyword_string) 
            if prefix : 
                keywords.append (((prefix + ':') + keyword_string)) 
def TryAppendPrefixes(prefix, keyword, delimiter) : 
        TryAppend (prefix, keyword) 
        segments = str (keyword).split (delimiter) 
        for i in range (1, len (segments)) : 
            TryAppend (prefix, delimiter.join (segments [0 : i])) 
return len (segments) 
def TryAppendIP(ip) : 
        TryAppend ('ip', ip) 
        if (TryAppendPrefixes ('ip', str (ip), '.') == 4) : 
            return 
TryAppendPrefixes ('ip', str (ip), ':') 
def TryAppendMac(mac) : 
        TryAppend ('mac', mac) 
        if (len (mac) == 12) : 
            TryAppend ('mac', ':'.join ([mac [i : (i + 2)] for i in range (0, 12, 2)])) 
s = client.Schema 
    TryAppend ('host', client.Get (s.HOSTNAME)) 
    TryAppendPrefixes ('host', client.Get (s.HOSTNAME), '-') 
    TryAppend ('host', client.Get (s.FQDN)) 
    TryAppendPrefixes ('host', client.Get (s.FQDN), '.') 
    TryAppend ('', client.Get (client.SYSTEM)) 
    TryAppend ('', client.Get (s.UNAME)) 
    TryAppend ('', client.Get (s.OS_RELEASE)) 
    TryAppend ('', client.Get (s.OS_VERSION)) 
    TryAppend ('', client.Get (s.KERNEL)) 
    TryAppend ('', client.Get (s.ARCH)) 
    kb = client.Get (s.KNOWLEDGE_BASE) 
    if kb : 
        for user in kb.users : 
            TryAppend ('user', user.username) 
            TryAppend ('', user.full_name) 
            if user.full_name : 
...

    
    

    Fix the buggy line: TryAppend ('', client.Get (client.SYSTEM))
assistant
#Here is Python code to find keywords for.

TryAppend ('', client.Get (s.SYSTEM))