Finish removal of "slave" terminology

See issue #234.  It's time.

.appveyor.yml

@@ -1,6 +1,5 @@
 environment:
   matrix:
-  - TOXENV: "py27-pytestlatest"
   - TOXENV: "py35-pytestlatest"
   - TOXENV: "py36-pytestlatest"
   - TOXENV: "py37-pytestlatest"

.travis.yml

@@ -32,8 +32,6 @@ jobs:
           - $HOME/.cache/pre-commit
     - python: '3.8'
       env: TOXENV=py38-pytestlatest
-    - python: '2.7'
-      env: TOXENV=py27-pytestlatest
 
     - stage: test
       python: "3.5"

changelog/541.removal.rst

@@ -0,0 +1 @@
+drop backward-compatibility "slave" aliases related to worker nodes.  We deliberately moved away from this terminology years ago, and it seems like the right time to finish the deprecation and removal process.

setup.py

@@ -1,12 +1,6 @@
 from setuptools import setup, find_packages
 
-install_requires = [
-    "execnet>=1.1",
-    "psutil>=3.0.0",
-    "pytest>=4.4.0",
-    "pytest-forked",
-    "six",
-]
+install_requires = ["execnet>=1.1", "psutil>=3.0.0", "pytest>=6.0.0", "pytest-forked"]
 
 
 with open("README.rst") as f:
@@ -15,8 +9,7 @@ with open("README.rst") as f:
 setup(
     name="pytest-xdist",
     use_scm_version={"write_to": "src/xdist/_version.py"},
-    description="pytest xdist plugin for distributed testing"
-    " and loop-on-failing modes",
+    description="pytest xdist plugin for distributed testing and loop-on-failing modes",
     long_description=long_description,
     license="MIT",
     author="holger krekel and contributors",
@@ -30,7 +23,7 @@ setup(
         "pytest11": ["xdist = xdist.plugin", "xdist.looponfail = xdist.looponfail"]
     },
     zip_safe=False,
-    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*",
+    python_requires=">=3.5",
     install_requires=install_requires,
     setup_requires=["setuptools_scm"],
     classifiers=[
@@ -45,9 +38,8 @@ setup(
         "Topic :: Software Development :: Quality Assurance",
         "Topic :: Utilities",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",

src/xdist/dsession.py

@@ -150,9 +150,6 @@ class DSession(object):
         node.workerinfo["id"] = node.gateway.id
         node.workerinfo["spec"] = node.gateway.spec
 
-        # TODO: (#234 task) needs this for pytest. Remove when refactor in pytest repo
-        node.slaveinfo = node.workerinfo
-
         self.config.hook.pytest_testnodeready(node=node)
         if self.shuttingdown:
             node.shutdown()

src/xdist/plugin.py

@@ -43,14 +43,11 @@ def pytest_addoption(parser):
     )
     group.addoption(
         "--max-worker-restart",
-        "--max-slave-restart",
         action="store",
         default=None,
         dest="maxworkerrestart",
         help="maximum number of workers that can be restarted "
-        "when crashed (set to zero to disable this feature)\n"
-        "'--max-slave-restart' option is deprecated and will be removed in "
-        "a future release",
+        "when crashed (set to zero to disable this feature)",
     )
     group.addoption(
         "--dist",

src/xdist/remote.py

@@ -266,8 +266,5 @@ if __name__ == "__channelexec__":
     config._parser.prog = os.path.basename(workerinput["mainargv"][0])
     config.workerinput = workerinput
     config.workeroutput = {}
-    # TODO: deprecated name, backward compatibility only. Remove it in future
-    config.slaveinput = config.workerinput
-    config.slaveoutput = config.workeroutput
     interactor = WorkerInteractor(config, channel)
     config.hook.pytest_cmdline_main(config=config)

src/xdist/workermanage.py

@@ -228,13 +228,9 @@ class WorkerController(object):
         self.workerinput = {
             "workerid": gateway.id,
             "workercount": len(nodemanager.specs),
-            "slaveid": gateway.id,
-            "slavecount": len(nodemanager.specs),
             "testrunuid": nodemanager.testrunuid,
             "mainargv": sys.argv,
         }
-        # TODO: deprecated name, backward compatibility only. Remove it in future
-        self.slaveinput = self.workerinput
         self._down = False
         self._shutdown_sent = False
         self.log = py.log.Producer("workerctl-%s" % gateway.id)
@@ -333,7 +329,7 @@ class WorkerController(object):
                 self.notify_inproc(eventname, node=self, **kwargs)
             elif eventname == "workerfinished":
                 self._down = True
-                self.workeroutput = self.slaveoutput = kwargs["workeroutput"]
+                self.workeroutput = kwargs["workeroutput"]
                 self.notify_inproc("workerfinished", node=self)
             elif eventname in ("logstart", "logfinish"):
                 self.notify_inproc(eventname, node=self, **kwargs)

testing/acceptance_test.py

@@ -245,22 +245,6 @@ class TestDistribution:
         result.stderr.fnmatch_lines(["--foobar=123 active! *"])
         assert dest.join(subdir.basename).check(dir=1)
 
-    def test_backward_compatibility_worker_terminology(self, testdir):
-        """Ensure that we still support "config.slaveinput" for backward compatibility (#234).
-
-        Keep in mind that removing this compatibility will break a ton of plugins and user code.
-        """
-        testdir.makepyfile(
-            """
-            def test(pytestconfig):
-                assert hasattr(pytestconfig, 'slaveinput')
-                assert hasattr(pytestconfig, 'workerinput')
-        """
-        )
-        result = testdir.runpytest("-n1")
-        result.stdout.fnmatch_lines("*1 passed*")
-        assert result.ret == 0
-
     def test_data_exchange(self, testdir):
         testdir.makeconftest(
             """

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 envlist=
   linting
-  py{27,35,36,37,38}-pytestlatest
+  py{35,36,37,38}-pytestlatest
   py38-pytestmaster
 
 [testenv]