====== BridgeClient module to interface Python to Arduino ======

found at /usr/lib/python.27/bridge

<code python>
from tcp import TCPJSONClient                                                   
from time import sleep                                                          
                                                                                
class BridgeClient:                                                             
  def wait_response(self, json, timeout):                                       
    while timeout>=0:                                                           
      r = json.recv()                                                           
      if not r is None:                                                         
        return r                                                                
      timeout -= 0.1                                                            
      sleep(0.1)                                                                
    return None                                                                 
                                                                                
  def wait_key(self, key, json, timeout):                                       
    while True:                                                                 
      r = self.wait_response(json, timeout)                                     
      if r is None:                                                             
        return None                                                             
      try:                                                                      
        if r['key'] == key:                                                     
          return r['value']                                                     
      except:                                                                   
        pass                                                                    
                                                                                
  def get(self, key):                                                           
    json = TCPJSONClient('127.0.0.1', 5700)                                     
    json.send({'command':'get', 'key':key})                                     
    r = self.wait_key(key, json, 10)                                            
    json.close()                                                                
    return r                                                                    
                                                                                
  def put(self, key, value):                                                    
    json = TCPJSONClient('127.0.0.1', 5700)                                     
    json.send({'command':'put', 'key':key, 'value':value})                      
    r = self.wait_key(key, json, 10)                                            
    json.close()                                                                
    return r 
</code>