Merge pull request #45 from Hipo/handle-assets-without-names

Bugfix for fetching assets without a unit name

Author: fergalwalsh

tinyman/assets.py

@@ -1,11 +1,12 @@
 from dataclasses import dataclass
 from decimal import Decimal
+from typing import Optional
 
 @dataclass
 class Asset:
     id: int
-    name: str = None
-    unit_name: str = None
+    name: Optional[str] = None
+    unit_name: Optional[str] = None
     decimals: int = None
 
     def __call__(self, amount: int) -> "AssetAmount":
@@ -23,8 +24,8 @@ def fetch(self, algod):
                 'unit-name': 'ALGO',
                 'decimals': 6,
             }
-        self.name = params.get('name', '')
-        self.unit_name = params.get('unit-name', '')
+        self.name = params.get('name')
+        self.unit_name = params.get('unit-name')
         self.decimals = params['decimals']
         return self