Remove obsolete Python 2.x controller code.

lib/ansible/executor/process/worker.py

@@ -130,11 +130,9 @@ class WorkerProcess(multiprocessing_context.Process):  # type: ignore[name-defin
             # shutdown. We have various ``Display`` calls that may fire from a fork
             # so we cannot do this early. Instead, this happens at the very end
             # to avoid that deadlock, by simply side stepping it. This should not be
-            # treated as a long term fix. Additionally this behavior only presents itself
+            # treated as a long term fix.
-            # on Python3. Python2 does not exhibit the deadlock behavior.
             # TODO: Evaluate overhauling ``Display`` to not write directly to stdout
             # and evaluate migrating away from the ``fork`` multiprocessing start method.
-            if sys.version_info[0] >= 3:
             sys.stdout = sys.stderr = open(os.devnull, 'w')
 
     def _run(self):

lib/ansible/executor/task_queue_manager.py

@@ -338,22 +338,6 @@ class TaskQueueManager:
         self._final_q.close()
         self._cleanup_processes()
 
-        # A bug exists in Python 2.6 that causes an exception to be raised during
-        # interpreter shutdown. This is only an issue in our CI testing but we
-        # hit it frequently enough to add a small sleep to avoid the issue.
-        # This can be removed once we have split controller available in CI.
-        #
-        # Further information:
-        #     Issue: https://bugs.python.org/issue4106
-        #     Fix:   https://hg.python.org/cpython/rev/d316315a8781
-        #
-        try:
-            if (2, 6) == (sys.version_info[0:2]):
-                time.sleep(0.0001)
-        except (IndexError, AttributeError):
-            # In case there is an issue getting the version info, don't raise an Exception
-            pass
-
     def _cleanup_processes(self):
         if hasattr(self, '_workers'):
             for attempts_remaining in range(C.WORKER_SHUTDOWN_POLL_COUNT - 1, -1, -1):

lib/ansible/plugins/callback/__init__.py

@@ -384,13 +384,6 @@ class CallbackBase(AnsiblePlugin):
                                               tofiledate=u'',
                                               n=C.DIFF_CONTEXT)
                 difflines = list(differ)
-                if len(difflines) >= 3 and sys.version_info[:2] == (2, 6):
-                    # difflib in Python 2.6 adds trailing spaces after
-                    # filenames in the -- before/++ after headers.
-                    difflines[0] = difflines[0].replace(u' \n', u'\n')
-                    difflines[1] = difflines[1].replace(u' \n', u'\n')
-                    # it also treats empty files differently
-                    difflines[2] = difflines[2].replace(u'-1,0', u'-0,0').replace(u'+1,0', u'+0,0')
                 has_diff = False
                 for line in difflines:
                     has_diff = True

lib/ansible/utils/display.py

@@ -264,8 +264,7 @@ class Display(metaclass=Singleton):
                 msg2 = msg2 + u'\n'
 
             msg2 = to_bytes(msg2, encoding=self._output_encoding(stderr=stderr))
-            if sys.version_info >= (3,):
+            # Convert back to text string
-                # Convert back to text string on python3
             # We first convert to a byte string so that we get rid of
             # characters that are invalid in the user's locale
             msg2 = to_text(msg2, self._output_encoding(stderr=stderr), errors='replace')
@@ -292,8 +291,7 @@ class Display(metaclass=Singleton):
             # color and characters that are invalid in the user's locale
             msg2 = to_bytes(nocolor.lstrip(u'\n'))
 
-            if sys.version_info >= (3,):
+            # Convert back to text string
-                # Convert back to text string on python3
             msg2 = to_text(msg2, self._output_encoding(stderr=stderr))
 
             lvl = logging.INFO
@@ -463,8 +461,7 @@ class Display(metaclass=Singleton):
     @staticmethod
     def prompt(msg, private=False):
         prompt_string = to_bytes(msg, encoding=Display._output_encoding())
-        if sys.version_info >= (3,):
+        # Convert back into text.  We do this double conversion
-            # Convert back into text on python3.  We do this double conversion
         # to get rid of characters that are illegal in the user's locale
         prompt_string = to_text(prompt_string)