Merge ~cjwatson/lazr.restful:drop-py2 into lazr.restful:main

[Colin Watson]

Drop Python 2 support

This just updates metadata. There's a lot of code to update or remove, but I'll do that separately, allowing pyupgrade to do the bulk of the work.

[Jürgen Gmach (jugmac00)]

review: Approve

diff --git a/NEWS.rst b/NEWS.rst
index 74ee44e..c9dff29 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -19,6 +19,7 @@ NEWS for lazr.restful
   ``lazr.restful.testing.webservice.DummyRootResourceURL``
   => ``lazr.restful.testing.webservice.StubRootResourceURL``
 - Apply black code formatter via pre-commit.
+- Drop Python 2 support.
 
 1.1.0 (2021-10-07)
 ==================
diff --git a/setup.py b/setup.py
index 71f4fd8..7f0ed89 100755
--- a/setup.py
+++ b/setup.py
@@ -88,8 +88,6 @@ setup(
         "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",  # noqa: E501
         "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",
@@ -105,5 +103,6 @@ setup(
             "lxml",
         ],  # requiring this of normal users is too much
     ),
+    python_requires=">=3.5",
     test_suite="lazr.restful.tests",
 )
diff --git a/tox.ini b/tox.ini
index 4030fe5..c191378 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,6 @@
 [tox]
 envlist =
     lint
-    py27
     py35
     py36
     py37