Use "whey" as the build backend.

Author: domdfcoding

MANIFEST.in

@@ -1,6 +1,6 @@
 [build-system]
-requires = [ "setuptools>=40.6.0", "wheel>=0.34.2",]
-build-backend = "setuptools.build_meta"
+requires = [ "whey",]
+build-backend = "whey"
 
 [project]
 name = "flake8_strftime"
@@ -22,5 +22,18 @@ Homepage = "https://github.com/domdfcoding/flake8_strftime"
 "Source Code" = "https://github.com/domdfcoding/flake8_strftime"
 Documentation = "https://flake8_strftime.readthedocs.io/en/latest"
 
+[tool.whey]
+base-classifiers = [
+    "Development Status :: 4 - Beta",
+    "Framework :: Flake8",
+    "Intended Audience :: Developers",
+    "Topic :: Utilities",
+    "Typing :: Typed",
+]
+python-versions = [ "3.6", "3.7", "3.8", "3.9",]
+python-implementations = [ "CPython", "PyPy",]
+platforms = [ "Windows", "macOS", "Linux",]
+license-key = "MIT"
+
 [project.entry-points."flake8.extension"]
 STRFTIME = "flake8_strftime:Plugin"

pyproject.toml

@@ -10,9 +10,10 @@ username: "domdfcoding"
 license: 'MIT'
 short_desc: "A flake8 plugin which checks for use of platform specific strftime codes."
 
+use_whey: true
+min_coverage: 100
 sphinx_html_theme: furo
 standalone_contrib_guide: true
-min_coverage: 100
 
 conda_channels:
  - conda-forge