Remove Python 2 handling code (#2098)

* Remove Python 2 update modal

* Remove Python 2 handling code

* Remove backports dependencies

* Remove uses of future and __future__

* Fix import

* Remove requirements

* Update lib folder

* Clean up imports and blank lines

---------

Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com>

lib/future/__init__.py

@@ -52,7 +52,7 @@ Automatic conversion
 --------------------
 
 An included script called `futurize
-<http://python-future.org/automatic_conversion.html>`_ aids in converting
+<https://python-future.org/automatic_conversion.html>`_ aids in converting
 code (from either Python 2 or Python 3) to code compatible with both
 platforms. It is similar to ``python-modernize`` but goes further in
 providing Python 3 compatibility through the use of the backported types
@@ -62,21 +62,20 @@ and builtin functions in ``future``.
 Documentation
 -------------
 
-See: http://python-future.org
+See: https://python-future.org
 
 
 Credits
 -------
 
 :Author:  Ed Schofield, Jordan M. Adler, et al
-:Sponsor: Python Charmers Pty Ltd, Australia, and Python Charmers Pte
-          Ltd, Singapore. http://pythoncharmers.com
-:Others:  See docs/credits.rst or http://python-future.org/credits.html
+:Sponsor: Python Charmers: https://pythoncharmers.com
+:Others:  See docs/credits.rst or https://python-future.org/credits.html
 
 
 Licensing
 ---------
-Copyright 2013-2019 Python Charmers Pty Ltd, Australia.
+Copyright 2013-2024 Python Charmers, Australia.
 The software is distributed under an MIT licence. See LICENSE.txt.
 
 """
@@ -84,10 +83,10 @@ The software is distributed under an MIT licence. See LICENSE.txt.
 __title__ = 'future'
 __author__ = 'Ed Schofield'
 __license__ = 'MIT'
-__copyright__ = 'Copyright 2013-2019 Python Charmers Pty Ltd'
-__ver_major__ = 0
-__ver_minor__ = 18
-__ver_patch__ = 3
+__copyright__ = 'Copyright 2013-2024 Python Charmers (https://pythoncharmers.com)'
+__ver_major__ = 1
+__ver_minor__ = 0
+__ver_patch__ = 0
 __ver_sub__ = ''
 __version__ = "%d.%d.%d%s" % (__ver_major__, __ver_minor__,
                               __ver_patch__, __ver_sub__)

lib/future/backports/datetime.py

@@ -689,7 +689,7 @@ class date(object):
 
     @classmethod
     def fromordinal(cls, n):
-        """Contruct a date from a proleptic Gregorian ordinal.
+        """Construct a date from a proleptic Gregorian ordinal.
 
         January 1 of year 1 is day 1.  Only the year, month and day are
         non-zero in the result.

lib/future/backports/email/_header_value_parser.py

@@ -2867,7 +2867,7 @@ def parse_content_type_header(value):
         _find_mime_parameters(ctype, value)
         return ctype
     ctype.append(token)
-    # XXX: If we really want to follow the formal grammer we should make
+    # XXX: If we really want to follow the formal grammar we should make
     # mantype and subtype specialized TokenLists here.  Probably not worth it.
     if not value or value[0] != '/':
         ctype.defects.append(errors.InvalidHeaderDefect(

lib/future/backports/email/parser.py

@@ -26,7 +26,7 @@ class Parser(object):
         textual representation of the message.
 
         The string must be formatted as a block of RFC 2822 headers and header
-        continuation lines, optionally preceeded by a `Unix-from' header.  The
+        continuation lines, optionally preceded by a `Unix-from' header.  The
         header block is terminated either by the end of the string or by a
         blank line.
 
@@ -92,7 +92,7 @@ class BytesParser(object):
         textual representation of the message.
 
         The input must be formatted as a block of RFC 2822 headers and header
-        continuation lines, optionally preceeded by a `Unix-from' header.  The
+        continuation lines, optionally preceded by a `Unix-from' header.  The
         header block is terminated either by the end of the input or by a
         blank line.
 

lib/future/backports/http/cookiejar.py

@@ -1851,7 +1851,7 @@ def lwp_cookie_str(cookie):
 class LWPCookieJar(FileCookieJar):
     """
     The LWPCookieJar saves a sequence of "Set-Cookie3" lines.
-    "Set-Cookie3" is the format used by the libwww-perl libary, not known
+    "Set-Cookie3" is the format used by the libwww-perl library, not known
     to be compatible with any browser, but which is easy to read and
     doesn't lose information about RFC 2965 cookies.
 

lib/future/backports/test/support.py

@@ -28,7 +28,6 @@ import importlib
 # import collections.abc    # not present on Py2.7
 import re
 import subprocess
-import imp
 import time
 try:
     import sysconfig
@@ -341,37 +340,6 @@ def rmtree(path):
         if error.errno != errno.ENOENT:
             raise
 
-def make_legacy_pyc(source):
-    """Move a PEP 3147 pyc/pyo file to its legacy pyc/pyo location.
-
-    The choice of .pyc or .pyo extension is done based on the __debug__ flag
-    value.
-
-    :param source: The file system path to the source file.  The source file
-        does not need to exist, however the PEP 3147 pyc file must exist.
-    :return: The file system path to the legacy pyc file.
-    """
-    pyc_file = imp.cache_from_source(source)
-    up_one = os.path.dirname(os.path.abspath(source))
-    legacy_pyc = os.path.join(up_one, source + ('c' if __debug__ else 'o'))
-    os.rename(pyc_file, legacy_pyc)
-    return legacy_pyc
-
-def forget(modname):
-    """'Forget' a module was ever imported.
-
-    This removes the module from sys.modules and deletes any PEP 3147 or
-    legacy .pyc and .pyo files.
-    """
-    unload(modname)
-    for dirname in sys.path:
-        source = os.path.join(dirname, modname + '.py')
-        # It doesn't matter if they exist or not, unlink all possible
-        # combinations of PEP 3147 and legacy pyc and pyo files.
-        unlink(source + 'c')
-        unlink(source + 'o')
-        unlink(imp.cache_from_source(source, debug_override=True))
-        unlink(imp.cache_from_source(source, debug_override=False))
 
 # On some platforms, should not run gui test even if it is allowed
 # in `use_resources'.

lib/future/backports/xmlrpc/client.py

@@ -134,10 +134,11 @@ from __future__ import (absolute_import, division, print_function,
 from future.builtins import bytes, dict, int, range, str
 
 import base64
-# Py2.7 compatibility hack
-base64.encodebytes = base64.encodestring
-base64.decodebytes = base64.decodestring
 import sys
+if sys.version_info < (3, 9):
+    # Py2.7 compatibility hack
+    base64.encodebytes = base64.encodestring
+    base64.decodebytes = base64.decodestring
 import time
 from datetime import datetime
 from future.backports.http import client as http_client
@@ -1251,7 +1252,7 @@ class Transport(object):
     # Send HTTP request.
     #
     # @param host Host descriptor (URL or (URL, x509 info) tuple).
-    # @param handler Targer RPC handler (a path relative to host)
+    # @param handler Target RPC handler (a path relative to host)
     # @param request_body The XML-RPC request body
     # @param debug Enable debugging if debug is true.
     # @return An HTTPConnection.

lib/future/builtins/__init__.py

@@ -2,7 +2,7 @@
 A module that brings in equivalents of the new and modified Python 3
 builtins into Py2. Has no effect on Py3.
 
-See the docs `here <http://python-future.org/what-else.html>`_
+See the docs `here <https://python-future.org/what-else.html>`_
 (``docs/what-else.rst``) for more information.
 
 """

lib/future/moves/_dummy_thread.py

@@ -1,8 +1,13 @@
 from __future__ import absolute_import
-from future.utils import PY3
+from future.utils import PY3, PY39_PLUS
 
-if PY3:
-    from _dummy_thread import *
+
+if PY39_PLUS:
+    # _dummy_thread and dummy_threading modules were both deprecated in
+    # Python 3.7 and removed in Python 3.9
+    from _thread import *
+elif PY3:
+        from _dummy_thread import *
 else:
     __future_module__ = True
     from dummy_thread import *

lib/future/moves/multiprocessing.py

@@ -0,0 +1,7 @@
+from __future__ import absolute_import
+from future.utils import PY3
+
+from multiprocessing import *
+if not PY3:
+    __future_module__ = True
+    from multiprocessing.queues import SimpleQueue

lib/future/moves/test/support.py

@@ -1,9 +1,18 @@
 from __future__ import absolute_import
+
+import sys
+
 from future.standard_library import suspend_hooks
 from future.utils import PY3
 
 if PY3:
     from test.support import *
+    if sys.version_info[:2] >= (3, 10):
+        from test.support.os_helper import (
+            EnvironmentVarGuard,
+            TESTFN,
+        )
+        from test.support.warnings_helper import check_warnings
 else:
     __future_module__ = True
     with suspend_hooks():

lib/future/standard_library/__init__.py

@@ -17,7 +17,7 @@ And then these normal Py3 imports work on both Py3 and Py2::
     import socketserver
     import winreg    # on Windows only
     import test.support
-    import html, html.parser, html.entites
+    import html, html.parser, html.entities
     import http, http.client, http.server
     import http.cookies, http.cookiejar
     import urllib.parse, urllib.request, urllib.response, urllib.error, urllib.robotparser
@@ -33,6 +33,7 @@ And then these normal Py3 imports work on both Py3 and Py2::
     from collections import OrderedDict, Counter, ChainMap     # even on Py2.6
     from subprocess import getoutput, getstatusoutput
     from subprocess import check_output              # even on Py2.6
+    from multiprocessing import SimpleQueue
 
 (The renamed modules and functions are still available under their old
 names on Python 2.)
@@ -62,9 +63,12 @@ from __future__ import absolute_import, division, print_function
 
 import sys
 import logging
-import imp
+# imp was deprecated in python 3.6
+if sys.version_info >= (3, 6):
+    import importlib as imp
+else:
+    import imp
 import contextlib
-import types
 import copy
 import os
 
@@ -108,6 +112,7 @@ RENAMES = {
            'future.moves.socketserver': 'socketserver',
            'ConfigParser': 'configparser',
            'repr': 'reprlib',
+           'multiprocessing.queues': 'multiprocessing',
            # 'FileDialog': 'tkinter.filedialog',
            # 'tkFileDialog': 'tkinter.filedialog',
            # 'SimpleDialog': 'tkinter.simpledialog',
@@ -125,7 +130,7 @@ RENAMES = {
            # 'Tkinter': 'tkinter',
            '_winreg': 'winreg',
            'thread': '_thread',
-           'dummy_thread': '_dummy_thread',
+           'dummy_thread': '_dummy_thread' if sys.version_info < (3, 9) else '_thread',
            # 'anydbm': 'dbm',   # causes infinite import loop
            # 'whichdb': 'dbm',  # causes infinite import loop
            # anydbm and whichdb are handled by fix_imports2
@@ -184,6 +189,7 @@ MOVES = [('collections', 'UserList', 'UserList', 'UserList'),
          ('itertools', 'filterfalse','itertools', 'ifilterfalse'),
          ('itertools', 'zip_longest','itertools', 'izip_longest'),
          ('sys', 'intern','__builtin__', 'intern'),
+         ('multiprocessing', 'SimpleQueue', 'multiprocessing.queues', 'SimpleQueue'),
          # The re module has no ASCII flag in Py2, but this is the default.
          # Set re.ASCII to a zero constant. stat.ST_MODE just happens to be one
          # (and it exists on Py2.6+).

lib/future/types/newint.py

@@ -223,9 +223,11 @@ class newint(with_metaclass(BaseNewInt, long)):
 
     def __rpow__(self, other):
         value = super(newint, self).__rpow__(other)
-        if value is NotImplemented:
+        if isint(value):
+            return newint(value)
+        elif value is NotImplemented:
             return other ** long(self)
-        return newint(value)
+        return value
 
     def __lshift__(self, other):
         if not isint(other):
@@ -318,7 +320,7 @@ class newint(with_metaclass(BaseNewInt, long)):
             bits = length * 8
             num = (2**bits) + self
             if num <= 0:
-                raise OverflowError("int too smal to convert")
+                raise OverflowError("int too small to convert")
         else:
             if self < 0:
                 raise OverflowError("can't convert negative int to unsigned")

lib/future/types/newrange.py

@@ -105,7 +105,7 @@ class newrange(Sequence):
         raise ValueError('%r is not in range' % value)
 
     def count(self, value):
-        """Return the number of ocurrences of integer `value`
+        """Return the number of occurrences of integer `value`
         in the sequence this range represents."""
         # a value can occur exactly zero or one times
         return int(value in self)