Python 3.12 support

build.sh

@@ -3,7 +3,7 @@ set -xuo pipefail
 
 DOCKER_IMAGE=jmadler/python-future-builder
 # XXX: TODO: Perhaps this version shouldn't be hardcoded
-version=0.18.3
+version=0.18.4
 
 docker build . -t $DOCKER_IMAGE
 docker push $DOCKER_IMAGE:latest

docs/whatsnew.rst

@@ -3,6 +3,12 @@
 What's New
 **********
 
+What's new in version 0.18.4 (2023-10-10)
+=========================================
+This is a minor bug-fix release containing a number of fixes:
+
+- Fix for Python 3.12's removal of the imp module
+
 What's new in version 0.18.3 (2023-01-13)
 =========================================
 This is a minor bug-fix release containing a number of fixes:

setup.py

@@ -103,6 +103,11 @@
     "Programming Language :: Python :: 3.5",
     "Programming Language :: Python :: 3.6",
     "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "License :: OSI Approved",
     "License :: OSI Approved :: MIT License",
     "Development Status :: 4 - Beta",

src/future/__init__.py

@@ -87,7 +87,7 @@
 __copyright__ = 'Copyright 2013-2019 Python Charmers Pty Ltd'
 __ver_major__ = 0
 __ver_minor__ = 18
-__ver_patch__ = 3
+__ver_patch__ = 4
 __ver_sub__ = ''
 __version__ = "%d.%d.%d%s" % (__ver_major__, __ver_minor__,
                               __ver_patch__, __ver_sub__)

src/future/backports/test/support.py

@@ -28,7 +28,6 @@
 # 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'.

src/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():

src/future/standard_library/__init__.py

@@ -62,9 +62,7 @@
 
 import sys
 import logging
-import imp
 import contextlib
-import types
 import copy
 import os
 
@@ -79,6 +77,9 @@
 
 from future.utils import PY2, PY3
 
+if PY2:
+    import imp
+
 # The modules that are defined under the same names on Py3 but with
 # different contents in a significant way (e.g. submodules) are:
 #   pickle (fast one)