formatting

setup.py

@@ -4,14 +4,10 @@
 # full copyright notices and license terms.
 
 from setuptools import setup
-# To use a consistent encoding
 from codecs import open
 from os import path
 import re
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
+from configparser import ConfigParser
 
 here = path.abspath(path.dirname(__file__))
 MODULE = 'edocument_xrechnung'
@@ -88,9 +84,9 @@ setup(
         'Natural Language :: English',
         'Operating System :: OS Independent',
         'License :: OSI Approved :: GNU General Public License (GPL)',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
     ],
 
     keywords='tryton xrechnung edcoument',