From fb3c183b3eedd8520ef8749925d921bd501af36b Mon Sep 17 00:00:00 2001
From: DarkPhoenix <phoenix@mail.ru>
Date: Mon, 3 Jun 2019 18:39:23 +0300
Subject: [PATCH] Do not attempt to fetch data from unknown systems

---
 service/marketSources/evepraisal.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/service/marketSources/evepraisal.py b/service/marketSources/evepraisal.py
index 9e8006c0b..e910b92fa 100644
--- a/service/marketSources/evepraisal.py
+++ b/service/marketSources/evepraisal.py
@@ -48,6 +48,8 @@ class EvePraisal:
 
     @staticmethod
     def fetchPrices(priceMap, fetchTimeout, system=None):
+        if system not in systemAliases:
+            return
         jsonData = {
             'market_name': systemAliases[system],
             'items': [{'type_id': typeID} for typeID in priceMap]}
@@ -58,7 +60,7 @@ class EvePraisal:
         try:
             itemsData = data['appraisal']['items']
         except (KeyError, TypeError):
-            return False
+            return
         # Cycle through all types we've got from request
         for itemData in itemsData:
             try: