Migrate Python package metadata to pyproject.toml

MANIFEST.in

@@ -1 +1,5 @@
-include README.md LICENSE
+include README.md LICENSE tox.ini test_socketio.py
+recursive-include docs *
+recursive-exclude docs/_build *
+recursive-include tests *
+exclude **/*.pyc

pyproject.toml

@@ -1,6 +1,51 @@
+[project]
+name = "Flask-SocketIO"
+version = "5.3.7.dev0"
+authors = [
+    { name = "Miguel Grinberg", email = "[email protected]" },
+]
+description = "Socket.IO integration for Flask applications"
+classifiers = [
+    "Environment :: Web Environment",
+    "Intended Audience :: Developers",
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+requires-python = ">=3.6"
+dependencies = [
+    "Flask >= 0.9",
+    "python-socketio >= 5.0.2",
+]
+
+[project.readme]
+file = "README.md"
+content-type = "text/markdown"
+
+[project.urls]
+Homepage = "https://github.com/miguelgrinberg/flask-socketio"
+"Bug Tracker" = "https://github.com/miguelgrinberg/flask-socketio/issues"
+
+[project.optional-dependencies]
+docs = [
+    "sphinx",
+]
+
+[tool.setuptools]
+zip-safe = false
+include-package-data = true
+
+[tool.setuptools.package-dir]
+"" = "src"
+
+[tool.setuptools.packages.find]
+where = [
+    "src",
+]
+namespaces = false
+
 [build-system]
 requires = [
-    "setuptools>=42",
-    "wheel"
+    "setuptools>=61.2",
 ]
 build-backend = "setuptools.build_meta"