Remove AtheOS support, as per PEP 11 (which claims that all code was removed in Python 3.0).

Lib/test/regrtest.py

@@ -1188,19 +1188,6 @@ _expectations = {
         test_zipfile
         test_zlib
         """,
-    'atheos':
-        """
-        test_curses
-        test_dbm_gnu
-        test_epoll
-        test_largefile
-        test_locale
-        test_kqueue
-        test_mhlib
-        test_mmap
-        test_poll
-        test_resource
-        """,
     'cygwin':
         """
         test_curses

Lib/test/test_fcntl.py

@@ -16,15 +16,12 @@ fcntl = import_module('fcntl')
 # TODO - Write tests for flock() and lockf().
 
 def get_lockdata():
-    if sys.platform.startswith('atheos'):
-        start_len = "qq"
+    try:
+        os.O_LARGEFILE
+    except AttributeError:
+        start_len = "ll"
     else:
-        try:
-            os.O_LARGEFILE
-        except AttributeError:
-            start_len = "ll"
-        else:
-            start_len = "qq"
+        start_len = "qq"
 
     if sys.platform in ('netbsd1', 'netbsd2', 'netbsd3',
                         'Darwin1.2', 'darwin',

Lib/test/test_file.py

@@ -106,8 +106,7 @@ class AutoFileTests(unittest.TestCase):
                    ('writelines', ([],)),
                    ('__iter__', ()),
                    ]
-        if not sys.platform.startswith('atheos'):
-            methods.append(('truncate', ()))
+        methods.append(('truncate', ()))
 
         # __exit__ should close the file
         self.f.__exit__(None, None, None)

Lib/test/test_fileio.py

@@ -96,8 +96,6 @@ class AutoFileTests(unittest.TestCase):
         methods = ['fileno', 'isatty', 'read', 'readinto',
                    'seek', 'tell', 'truncate', 'write', 'seekable',
                    'readable', 'writable']
-        if sys.platform.startswith('atheos'):
-            methods.remove('truncate')
 
         self.f.close()
         self.assertTrue(self.f.closed)