python: Make Decimal types serializable using the default JSON serializer.

Author: da-tanabe

VERSION

@@ -1 +1 @@
-7.5.15
+7.6.0

pyproject.toml

@@ -3,7 +3,7 @@
 
 [tool.poetry]
 name = "dazl"
-version = "7.5.15"
+version = "7.6.0"
 description = "high-level Ledger API client for Daml ledgers"
 license = "Apache-2.0"
 authors = ["Davin K. Tanabe <davin.tanabe@digitalasset.com>"]

python/dazl/prim/json.py

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 from datetime import date, datetime
+from decimal import Decimal
 import json
 
 from .contracts import ContractId
@@ -22,6 +23,8 @@ def default(self, o):
             return date_to_str(o)
         elif isinstance(o, ContractId):
             return o.value
+        elif isinstance(o, Decimal):
+            return str(o)
         elif isinstance(o, UnquotedDecimal):
             return UnquotedDecimal(o)