Update Python < 3.7 (3.2 to 3.6) obsolete code and comments

pkg_resources/__init__.py

@@ -43,16 +43,7 @@
 import importlib
 from pkgutil import get_importer
 
-try:
-    import _imp
-except ImportError:
-    # Python 3.2 compatibility
-    import imp as _imp
-
-try:
-    FileExistsError
-except NameError:
-    FileExistsError = OSError
+import _imp
 
 # capture these to bypass sandboxing
 from os import utime

pkg_resources/tests/test_pkg_resources.py

@@ -22,17 +22,6 @@
 import pkg_resources
 
 
-def timestamp(dt):
-    """
-    Return a timestamp for a local, naive datetime instance.
-    """
-    try:
-        return dt.timestamp()
-    except AttributeError:
-        # Python 3.2 and earlier
-        return time.mktime(dt.timetuple())
-
-
 class EggRemover(str):
     def __call__(self):
         if self in sys.path:
@@ -123,7 +112,7 @@ def test_resource_filename_rewrites_on_change(self):
         f = open(filename, 'w')
         f.write('hello, world?')
         f.close()
-        ts = timestamp(self.ref_time)
+        ts = self.ref_time.timestamp()
         os.utime(filename, (ts, ts))
         filename = zp.get_resource_filename(manager, 'data.dat')
         with open(filename) as f:

setuptools/command/easy_install.py

@@ -257,8 +257,9 @@ def finalize_options(self):  # noqa: C901  # is too complex (25)  # FIXME
                 'py_version_nodot': f'{sys.version_info.major}{sys.version_info.minor}',
                 'sys_prefix': self.config_vars['prefix'],
                 'sys_exec_prefix': self.config_vars['exec_prefix'],
-                # Only python 3.2+ has abiflags
+                # Only POSIX systems have abiflags
                 'abiflags': getattr(sys, 'abiflags', ''),
+                # Only python 3.9+ has platlibdir
                 'platlibdir': getattr(sys, 'platlibdir', 'lib'),
             }
         )

setuptools/command/sdist.py

@@ -73,14 +73,6 @@ def run(self):
     def initialize_options(self):
         orig.sdist.initialize_options(self)
 
-        self._default_to_gztar()
-
-    def _default_to_gztar(self):
-        # only needed on Python prior to 3.6.
-        if sys.version_info >= (3, 6, 0, 'beta', 1):
-            return
-        self.formats = ['gztar']
-
     def make_distribution(self):
         """
         Workaround for #516

setuptools/monkey.py

@@ -138,8 +138,7 @@ def patch_for_msvc_specialized_compiler():
     Patch functions in distutils to use standalone Microsoft Visual C++
     compilers.
     """
-    # import late to avoid circular imports on Python < 3.5
-    msvc = import_module('setuptools.msvc')
+    from . import msvc
 
     if platform.system() != 'Windows':
         # Compilers only available on Microsoft Windows

setuptools/tests/test_find_packages.py

@@ -1,9 +1,7 @@
 """Tests for automatic package discovery"""
 import os
-import sys
 import shutil
 import tempfile
-import platform
 
 import pytest
 
@@ -27,15 +25,6 @@ def can_symlink():
     return can
 
 
-def has_symlink():
-    bad_symlink = (
-        # Windows symlink directory detection is broken on Python 3.2
-        platform.system() == 'Windows'
-        and sys.version_info[:2] == (3, 2)
-    )
-    return can_symlink() and not bad_symlink
-
-
 class TestFindPackages:
     def setup_method(self, method):
         self.dist_dir = tempfile.mkdtemp()
@@ -134,7 +123,7 @@ def test_dir_with_packages_in_subdir_is_excluded(self):
         packages = find_packages(self.dist_dir)
         assert 'build.pkg' not in packages
 
-    @pytest.mark.skipif(not has_symlink(), reason='Symlink support required')
+    @pytest.mark.skipif(not can_symlink(), reason='Symlink support required')
     def test_symlinked_packages_are_included(self):
         """
         A symbolically-linked directory should be treated like any other