Enable this to be built and distributed using modern Python3

requirements.txt

@@ -1,2 +1,2 @@
-gitchangelog==2.3.0
-Sphinx==1.4.5
+# gitchangelog==2.3.0
+Sphinx==7.2.6

setup.cfg

@@ -1,17 +1,15 @@
 [metadata]
 name = grapefruit
-version = 0.1a4
-summary = A module to manipulate color information easily.
-description-file =
-  README.rst
-requires-dist =
+version = 0.1a5
+description = A module to manipulate color information easily.
+long_description = file: README.rst
 
 ## sdist info
 author = Xavier Basty
 author_email = xbasty@gmail.com
-home_page = https://github.com/xav/Grapefruit/
+url = https://github.com/xav/Grapefruit/
 keywords = color, colour
-classifier =
+classifiers =
   Programming Language :: Python
   Development Status :: 3 - Alpha
   Intended Audience :: Developers
@@ -20,13 +18,13 @@ classifier =
   Topic :: Software Development :: Libraries :: Python Modules
   Topic :: Multimedia :: Graphics
 
-[files]
-modules = grapefruit
-resources =
-  README.rst = {doc}
-  doc/* = {doc}
-extra_files =
-  setup.py
+[options]
+py_modules = grapefruit
+
+[options.package_data]
+grapefruit =
+  *.rst
+  doc/*
 
 [nosetests]
 verbosity = 3

setup.py

@@ -14,15 +14,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-try:
-    from setuptools import setup
-except ImportError:
-    from distribute_setup import use_setuptools
-    use_setuptools()
-    from setuptools import setup
+from setuptools import setup
 
 setup(
-    setup_requires=['d2to1'],
     extras_require={'test': ['nose', ]},
-    d2to1=True
 )