Merge pull request #1360 from pan-long/patch-1

Use dot to access attribute in NamedTuple

freqtrade/wallets.py

@@ -35,8 +35,8 @@ class Wallets(object):
             return 999.9
 
         balance = self.wallets.get(currency)
-        if balance and balance['free']:
-            return balance['free']
+        if balance and balance.free:
+            return balance.free
         else:
             return 0