vowpal wabbit test

vw_test.py

import os
import random as rand

iters = 1000
actual_threshold = 70

for i in range(iters):
  score_sampled = rand.randint(0,100)

  get_prob_command = " echo \" | f1:{}  \" | netcat localhost 26542".format(score_sampled) 
  print(get_prob_command)
  output = os.popen(get_prob_command).read()
  prob_vector = output.split('\n')[0]
  block_prob = float(output.split()[0])

  rand_uni = rand.uniform(0.0,1.0)
  update_template = " echo \" {action}:{action_cost}:{action_prob} | f1:{score_sampled} \" | netcat localhost 26542"
  update_command = None
  cost = None
  action = None
  if block_prob >= rand_uni:
    #block
    action = 'block'
    if score_sampled >= actual_threshold:
      #successful block
      cost = 0
    else:
      #fp
      cost = 1      
    update_command = update_template.format(action=1,action_cost=cost,action_prob=block_prob,score_sampled=score_sampled)
  else:
    #do not block
    action = 'allow'
    if score_sampled >= actual_threshold:
      #fn
      cost = 1
    else:
      #successful no action
      cost = 0
    update_command = update_template.format(action=2,action_cost=cost,action_prob=(1.0 - block_prob),score_sampled=score_sampled)
  print(update_command)
  op2 = os.popen(update_command).read()
  print(actual_threshold,score_sampled,block_prob,action,cost)