parsley reference problem

gistfile1.py

# this one works, I can repeat the expr in query {times} 
byte = anything:b -> ord(b)
query = byte:times expr{times}

# however, if the byte CANNOT return ord(b), how can I refer to the value of 'ord(anything:b)' when I am in query?
# one workaround is to store it in a temporary place.
# for example
byte = anything:b -> temp.update(b)
query = byte expr{temp.b}

class Temp():
  def update(self, b):
    self.b = ord(b)
bindings = {"temp", Temp()}
makeGrammar(grammarSource, bindings)("b'\x02\x32\x33').query()

# however, I cannot reference temp[b] inside query.