Fix to_json of lists

Author: nielstron

pycardano/plutus.py

@@ -529,16 +529,14 @@ def _dfs(obj):
                 return {"int": obj}
             elif isinstance(obj, bytes):
                 return {"bytes": obj.hex()}
-            elif isinstance(obj, list):
-                return [_dfs(item) for item in obj]
-            elif isinstance(obj, IndefiniteList):
+            elif isinstance(obj, IndefiniteList) or isinstance(obj, list):
                 return {"list": [_dfs(item) for item in obj]}
             elif isinstance(obj, dict):
                 return {"map": [{"v": _dfs(v), "k": _dfs(k)} for k, v in obj.items()]}
             elif isinstance(obj, PlutusData):
                 return {
                     "constructor": obj.CONSTR_ID,
-                    "fields": _dfs([getattr(obj, f.name) for f in fields(obj)]),
+                    "fields": [_dfs(getattr(obj, f.name)) for f in fields(obj)],
                 }
             else:
                 raise TypeError(f"Unexpected type {type(obj)}")

test/pycardano/test_plutus.py

@@ -121,7 +121,7 @@ def test_plutus_data_list_json():
     encoded_json = test.to_json(separators=(",", ":"))
 
     assert (
-        '{"constructor":0,"fields":[[{"constructor":9,"fields":[]},{"constructor":9,"fields":[]}]]}'
+        '{"constructor":0,"fields":[{"list":[{"constructor":9,"fields":[]},{"constructor":9,"fields":[]}]}]}'
         == encoded_json
     )