Add support for Python 3.5, 3.10, 3.11.

- isort imports
- bring coverage to 100 %.

CHANGES.rst

@@ -4,11 +4,11 @@ Changelog
 5.0 (unreleased)
 ----------------
 
-- Update PyPy version for Travis.
+- Add support for Python 3.7, 3.8, 3.9, 3.10, 3.11.
 
-- Add support for Python 3.7, 3.8 and 3.9.
+- Update PyPy version for Travis.
 
-- Drop support for Python 3.4 and 3.5.
+- Drop support for Python 3.4.
 
 
 4.3 (2017-09-08)

setup.py

@@ -13,7 +13,10 @@
 ##############################################################################
 
 import os
-from setuptools import setup, find_packages
+
+from setuptools import find_packages
+from setuptools import setup
+
 
 version = '5.0.dev0'
 
@@ -38,21 +41,26 @@
     classifiers=[
         "Development Status :: 6 - Mature",
         "Environment :: Web Environment",
-        "Framework :: Zope2",
+        "Framework :: Zope :: 2",
+        "Framework :: Zope :: 4",
+        "Framework :: Zope :: 5",
         "License :: OSI Approved :: Zope Public License",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "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",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
     ],
-    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*',
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
     keywords="zope zope4 undo",
     install_requires=[
         'setuptools',

src/ZopeUndo/tests/test_prefix.py

@@ -50,3 +50,7 @@ def test_username_info(self):
         for equal in (" eggs", "/ eggs", "/def eggs", "/a/b eggs",
                       "/a/b/c eggs", "/a/b/c/d eggs"):
             self.assertEqual(p2, equal)
+
+    def test__repr__(self):
+        p1 = Prefix('/a/b')
+        self.assertEqual(repr(p1), "Prefix('/a/b')")