Use attribution for version/changelog

Author: amyreese

CHANGELOG.md

@@ -0,0 +1,80 @@
+diff-match-patch
+================
+
+[![Generated by attribution][attribution-badge]][attribution-url]
+
+
+v20200713
+---------
+
+Maintenance release
+
+- Pulls in upstream change to use raw strings for regex
+- Updates to how the package builds, tests, and runs lint
+- Uses PEP 517/518 metadata for build requirements/backend
+- Formatting improvements, including use of isort
+
+```text
+$ git shortlog -s v20181111...v20200713
+    15	Amethyst Reese
+     1	Stuart Prescott
+```
+
+
+v20181111
+---------
+
+Version v20181111:
+
+- Rename module to diff-match-patch to supercede existing PyPI module
+- Match existing module version scheme
+- Update readme, tests, etc for import names
+
+```text
+$ git shortlog -s v2018.11.06.1...v20181111
+     3	Amethyst Reese
+```
+
+
+v2018.11.06.1
+-------------
+
+Bug fix v2018.11.06.1:
+
+- Remove pathlib import from setup.py to fix py2 builds
+
+```text
+$ git shortlog -s v2018.11.06...v2018.11.06.1
+     2	Amethyst Reese
+```
+
+
+v2018.11.06
+-----------
+
+Release v2018.11.06:
+
+- Add support for Python 2.7 using conditional imports.
+  Includes the upstream python2 implementation and tests,
+  and selects them at import time as appropriate.
+
+```text
+$ git shortlog -s v2018.11.05...v2018.11.06
+     5	Amethyst Reese
+```
+
+
+v2018.11.05
+-----------
+
+Initial release v2018.11.05
+
+```text
+$ git shortlog -s v2018.11.05
+     3	Amethyst Reese
+```
+
+[attribution-badge]:
+    https://img.shields.io/badge/generated%20by-attribution-informational
+[attribution-url]: https://attribution.omnilib.dev
+

diff_match_patch/__init__.py

@@ -4,7 +4,7 @@
 Offers robust algorithms to perform the operations required for synchronizing plain text.
 """
 
+from .__version__ import __version__
 from .diff_match_patch import __author__, __doc__, diff_match_patch, patch_obj
 
-__version__ = "20200713"
 __packager__ = "Amethyst Reese (amy@noswap.com)"

diff_match_patch/__version__.py

@@ -0,0 +1,7 @@
+"""
+This file is automatically generated by attribution.
+
+Do not edit manually. Get more info at https://attribution.omnilib.dev
+"""
+
+__version__ = "20200713"

pyproject.toml

@@ -25,6 +25,7 @@ dependencies = []
 
 [project.optional-dependencies]
 dev = [
+    "attribution==1.6.2",
     "black==23.3.0",
     "flit==3.8.0",
     "mypy==1.2.0",
@@ -39,3 +40,9 @@ Github = "https://github.com/diff-match-patch-python/diff-match-patch"
 exclude = [
     ".github/",
 ]
+
+[tool.attribution]
+name = "diff-match-patch"
+package = "diff_match_patch"
+signed_tags = true
+version_file = true