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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.3.0] - 2026-03-17

Breaking Changes

  • NODEFAULT sentinel changed from string "THROWERROR" to object(). Code comparing against the string will break.
  • Migrated from setup.py to pyproject.toml.
  • Removed typing from dependencies (stdlib since Python 3.5).

Fixed

  • Falsy value bug in __call__ — nested("key", 0) now correctly sets the value instead of treating 0 as "no value". Same for "", False, [], {}.
  • NODEFAULT sentinel collision — using object() instead of a string means you can store any string value without collision.
  • unittest.main() guard — tests now work with pytest.

Added

  • __repr__ on all Nested classes for debugging.
  • Type hints and docstrings on all public methods.
  • Nested base class exported from package.
  • .gitignore with proper Python/IDE patterns.

[0.2.0] - 2023-01-01

Added

  • NestedTuple for immutable nested access.
  • __call__ interface for get/set.
  • __getattr__/__setattr__ for dot notation access.
  • default parameter for get() and __call__.
  • modify flag for returning raw values.
  • _get_list_index for accessing dict keys inside lists.

[0.1.0] - 2023-01-01

Added

  • Initial release.
  • NestedDict and NestedList with delimiter-based access.
  • get(), set(), __getitem__, __setitem__.