Revert "Use declarative setup with pyproject.toml" (#479)

setup.py

@@ -1,3 +1,46 @@
-from setuptools import setup
+import os
+import re
 
-setup()
+from setuptools import find_packages, setup
+
+
+def find_version():
+    file_dir = os.path.dirname(__file__)
+    with open(os.path.join(file_dir, "auth0", "__init__.py")) as f:
+        version = re.search(r'^__version__ = [\'"]([^\'"]*)[\'"]', f.read())
+        if version:
+            return version.group(1)
+        else:
+            raise RuntimeError("Unable to find version string.")
+
+
+with open("README.md", encoding="utf-8") as f:
+    long_description = f.read()
+
+
+setup(
+    name="auth0-python",
+    version=find_version(),
+    description="Auth0 Python SDK",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    author="Auth0",
+    author_email="support@auth0.com",
+    license="MIT",
+    packages=find_packages(),
+    install_requires=["requests>=2.14.0", "pyjwt[crypto]>=2.6.0"],
+    extras_require={"test": ["coverage", "pre-commit"]},
+    python_requires=">=3.7",
+    classifiers=[
+        "Development Status :: 5 - Production/Stable",
+        "Intended Audience :: Developers",
+        "Operating System :: OS Independent",
+        "License :: OSI Approved :: MIT License",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+    ],
+    url="https://github.com/auth0/auth0-python",
+)