Use old price information if update fails. Add "(!)" to show that price is out of date

service/market.py

@@ -706,10 +706,6 @@ class Market():
 
             self.priceCache[typeID] = price
 
-        if not price.isValid:
-            # if the price has expired
-            price.price = None
-
         return price
 
     def getPricesNow(self, typeIDs):

service/price.py

@@ -71,7 +71,6 @@ class Price():
 
         # Attempt to send request and process it
         try:
-            len(priceMap)
             network = service.Network.getInstance()
             data = network.request(baseurl, network.PRICES, data)
             xml = minidom.parse(data)
@@ -102,7 +101,7 @@ class Price():
             for typeID in priceMap.keys():
                 priceobj = priceMap[typeID]
                 priceobj.time = time.time() + TIMEOUT
-                priceobj.failed = None
+                priceobj.failed = True
                 del priceMap[typeID]
         except:
             # all other errors will pass and continue onward to the REREQUEST delay
@@ -111,6 +110,5 @@ class Price():
         # if we get to this point, then we've got an error. Set to REREQUEST delay
         for typeID in priceMap.keys():
             priceobj = priceMap[typeID]
-            priceobj.price = 0
             priceobj.time = time.time() + REREQUEST
-            priceobj.failed = None
+            priceobj.failed = True