Decimal Type Rendering

Updates the render encoding across all JSON
serialization sources to include support for
rendering decimals to JSON-compatible floats.

cauldron/render/encoding.py

@@ -2,6 +2,7 @@
 import json
 import numpy as np
 import pandas as pd
+import decimal
 import typing
 from collections import namedtuple
 
@@ -14,6 +15,8 @@
 def default_override(value: typing.Any):
     """..."""
 
+    if isinstance(value, decimal.Decimal):
+        return float(value)
     if isinstance(value, datetime.date):
         return value.isoformat()
     elif isinstance(value, datetime.datetime):

cauldron/settings.json

@@ -1,4 +1,4 @@
 {
-  "version": "1.0.3",
+  "version": "1.0.4",
   "notebookVersion": "v1"
 }

cauldron/test/render/test_render.py

@@ -2,6 +2,7 @@
 import os
 from unittest.mock import patch
 from datetime import date
+import decimal
 
 import pandas as pd
 from cauldron import render
@@ -13,12 +14,13 @@ class TestRender(scaffolds.ResultsTest):
 
     def test_table(self):
         """Should render a table"""
-
+        dt = date(2016, 9, 9)
+        d = decimal.Decimal('3.14')
         df = pd.DataFrame([
-            {'a': 1, 'b': 'hello', 'c': True, 'd': date(2016, 9, 9)},
-            {'a': 1, 'b': 'hello', 'c': True, 'd': date(2016, 9, 9)},
-            {'a': 1, 'b': 'hello', 'c': True, 'd': date(2016, 9, 9)},
-            {'a': 1, 'b': 'hello', 'c': True, 'd': date(2016, 9, 9)}
+            {'a': 1, 'b': 'hello', 'c': True, 'd': dt, 'e': d},
+            {'a': 1, 'b': 'hello', 'c': True, 'd': dt, 'e': d},
+            {'a': 1, 'b': 'hello', 'c': True, 'd': dt, 'e': d},
+            {'a': 1, 'b': 'hello', 'c': True, 'd': dt, 'e': d}
         ])
 
         result = render.table(df, 0.5, include_index=True)

cauldron/test/support/mocking.py

@@ -65,4 +65,4 @@ def __enter__(self):
         return self.mock_importer
 
     def __exit__(self, *args, **kwargs):
-        return self._patch.__exit__()
+        return self._patch.__exit__(*args)

development.dockerfile

@@ -0,0 +1,5 @@
+FROM python:3.8
+
+COPY requirements.txt /build-data/requirements.txt
+
+RUN pip install -r /build-data/requirements.txt --upgrade