reliability updates

zpool-switch.py

@@ -40,11 +40,15 @@ try:
   exchrate=float(json.loads(fetch("https://api.coinbase.com/v2/exchange-rates?currency=BTC"))["data"]["rates"][currency])
   data=json.loads(fetch("http://www.zpool.ca/api/status"))
 except:
+  if (len(sys.argv)!=5):
     print("unable to retrieve remote data", file=sys.stderr)
     sys.exit(-1)
+  else:
+    pass
 
 # update algo map
 
+try:
   changed=False
   for i in data:
     try:
@@ -56,6 +60,10 @@ for i in data:
   if (changed==True):    
     with open(sys.argv[3], "w") as outfile:
       json.dump(algo_map, outfile, sort_keys=True, indent=2)
+except:
+  print("null response from server", file=sys.stderr)
+  sys.exit(-1)
+  
 
 # weed out miners not supported by the pool