fixed an issue with nrItems

src/data.py

@@ -50,7 +50,7 @@ channel_mapping = {'#': Channel.GLOBAL,
 
 class Trade():
     def __init__(self,
-                 nrItems: str,
+                 nrItems: int,
                  item: str,
                  amount: float,
                  currency: str,
@@ -69,7 +69,12 @@ class Trade():
 
     @classmethod
     def by_regex_result(cls, res):
-        return cls(nrItems=res['nrItems'],
+        if 'nrItems' in res.groupdict():
+            nrItems = int(res['nrItems'])
+        else:
+            # If no number is specified we only search for one item
+            nrItems = 1
+        return cls(nrItems=nrItems,
                    item=res['item'],
                    amount=int(res['amount']),
                    currency=res['currency'],
@@ -130,11 +135,4 @@ class Message():
     def parse_trade(self) -> None:
         res = re_trade.search(self.message)
         if res:
-            self.trade = Trade(nrItems=res['nrItems'],
-                               item=res['item'],
-                               amount=float(res['amount']),
-                               currency=res['currency'],
-                               tab=res['tab'],
-                               row=res['row'],
-                               col=res['col'],
-                               league=res['league'])
+            self.trade = Trade.by_regex_result(res)