gnu: python-configobj: Update to 5.0.9.

* gnu/packages/python-xyz.scm (python-configobj): Update to 5.0.9.
Improve package style.
[source] <patch>: Remove as no longer required.
[build-system]: Switch to pyproject-build-system.
[propagated-inputs]: Remove python-six.
[native-inputs]: Add python-pytest and python-setuptools.

* gnu/packages/patches/python-configobj-setuptools.patch: Delete file.
* gnu/packages/python-xyz.scm (dist_patch_DATA): Deregister patch.

Change-Id: I5ab0522a85626562d5ee4f0f2d02728f3d0459ba

gnu/local.mk

@@ -2159,7 +2159,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/python-3-reproducible-build.patch	\
   %D%/packages/patches/python-cross-compile.patch		\
   %D%/packages/patches/python-colour-remove-d2to1.patch		\
-  %D%/packages/patches/python-configobj-setuptools.patch	\
   %D%/packages/patches/python-debugpy-unbundle-pydevd.patch	\
   %D%/packages/patches/python-docopt-pytest6-compat.patch	\
   %D%/packages/patches/python-fixtures-remove-monkeypatch-test.patch	\

gnu/packages/patches/python-configobj-setuptools.patch

@@ -1,30 +0,0 @@
-From 16fbc38f13e435b4e3e1a37d706e64e05bad4691 Mon Sep 17 00:00:00 2001
-From: Leo Famulari <leo@famulari.name>
-Date: Tue, 10 Nov 2015 23:09:24 -0500
-Subject: [PATCH] patch build to use setuptools
-
----
- setup.py | 8 +++++++-
- 1 file changed, 7 insertions(+), 1 deletion(-)
-
-diff --git a/setup.py b/setup.py
-index c6d57a6..27bf260 100644
---- a/setup.py
-+++ b/setup.py
-@@ -12,7 +12,12 @@
- # http://opensource.org/licenses/BSD-3-Clause
- import os
- import sys
--from distutils.core import setup
-+
-+try:
-+    from setuptools import setup
-+except ImportError:
-+    from distutils.core import setup
-+
- # a simple import wouldn't work if we moved towards a package with __init__
- from _version import __version__
- 
--- 
-2.6.2
-

gnu/packages/python-xyz.scm

@@ -19440,25 +19440,24 @@ objects.")
 (define-public python-configobj
   (package
     (name "python-configobj")
-    (version "5.0.6")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "configobj" version))
-              (sha256
-               (base32
-                "00h9rcmws03xvdlfni11yb60bz3kxfvsj6dg6nrpzj71f03nbxd2"))
-              ;; Patch setup.py so it looks for python-setuptools, which is
-              ;; required to parse the keyword 'install_requires' in setup.py.
-              (patches (search-patches "python-configobj-setuptools.patch"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     (list python-six))
-    (synopsis "Config file reading, writing and validation")
-    (description "ConfigObj is a simple but powerful config file reader and
-writer: an ini file round tripper.  Its main feature is that it is very easy to
-use, with a straightforward programmer’s interface and a simple syntax for
-config files.")
+    (version "5.0.9")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "configobj" version))
+       (sha256
+        (base32 "0j3872id3ngxkaapz9bv8as4lg4rfmch0dxqy767p81syaxq3j03"))))
+    (build-system pyproject-build-system)
+    (native-inputs
+     (list python-pytest
+           python-setuptools))
     (home-page "https://github.com/DiffSK/configobj")
+    (synopsis "Config file reading, writing and validation")
+    (description
+     "ConfigObj is a simple but powerful config file reader and writer: an
+ ini file round tripper.  Its main feature is that it is very easy to use,
+with a straightforward programmer’s interface and a simple syntax for config
+files.")
     (license license:bsd-3)))
 
 (define-public python-omegaconf