Bump version; update changelog

Author: RalfG

CHANGELOG.md

@@ -1,19 +1,35 @@
 # Changelog
+
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.1] - 03/07/2023
+
+### Fixed
+
+- Fix previous broken build (did not include changes)
+
 ## [0.3.0] - 15/11/2021
+
+### Fixed
+
 - Fix parsing of empty dictionaries and `False` configuration values. These would
   previously be overridden by the downstream configuration.
 
 ## [0.2.0] - 28/09/2021
+
+### Added
+
 - Add none_overrides_value option. Before this change, None values would unexpectedly
   override previously configured values. Now, the previous value will be retained if
   newer values are None. The old behavior can be re-enabled with by setting the
   none_overrides_value argument of CascadeConfig to True.
 
 ## [0.1.0-a0] - 03/08/2020
+
+### Added
+
 - Initial release

cascade_config.py

@@ -1,6 +1,6 @@
 """Cascading configuration from the CLI and config files."""
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"
 
 import json
 import os
@@ -55,15 +55,17 @@ def _update_dict_recursively(self, original: Dict, updater: Dict) -> Dict:
         """Update dictionary recursively."""
         for k, v in updater.items():
             if isinstance(v, dict):
-                if not v: # v is not None, v is empty dictionary
+                if not v:  # v is not None, v is empty dictionary
                     original[k] = dict()
                 else:
                     original[k] = self._update_dict_recursively(original.get(k, {}), v)
             elif isinstance(v, bool):
                 original[k] = v  # v is True or False
             elif v or k not in original:  # v is not None, or key does not exist yet
                 original[k] = v
-            elif self.none_overrides_value:  # v is None, but can override previous value
+            elif (
+                self.none_overrides_value
+            ):  # v is None, but can override previous value
                 original[k] = v
         return original