def hexists(key, field, host=None, port=None, db=None, password=None):
 server = _connect(host, port, db, password)
 return server.hexists(key, field)

def hexists ( key , field , host = None , port = None , db = None , password = None ) : server = _connect ( host , port , db , password ) return server . hexists ( key , field )
determine if a hash fields exists .