Drop exception support for packages triggering win32com cache generat…

…ion during build/install. Fixes #841

CHANGES.rst

@@ -2,6 +2,13 @@
 CHANGES
 =======
 
+v29.0.0
+-------
+
+* #841: Drop special exception for packages invoking
+  win32com during the build/install process. See
+  Distribute #118 for history.
+
 v28.8.0
 -------
 

setuptools/sandbox.py

@@ -373,14 +373,6 @@ def _remap_pair(self, operation, src, dst, *args, **kw):
 else:
     _EXCEPTIONS = []
 
-try:
-    from win32com.client.gencache import GetGeneratePath
-    _EXCEPTIONS.append(GetGeneratePath())
-    del GetGeneratePath
-except ImportError:
-    # it appears pywin32 is not installed, so no need to exclude.
-    pass
-
 
 class DirectorySandbox(AbstractSandbox):
     """Restrict operations to a single subdirectory - pseudo-chroot"""

setuptools/tests/test_sandbox.py

@@ -23,22 +23,6 @@ def do_write():
 
         return do_write
 
-    def test_win32com(self, tmpdir):
-        """
-        win32com should not be prevented from caching COM interfaces
-        in gen_py.
-        """
-        win32com = pytest.importorskip('win32com')
-        gen_py = win32com.__gen_path__
-        target = os.path.join(gen_py, 'test_write')
-        sandbox = DirectorySandbox(str(tmpdir))
-        try:
-            # attempt to create gen_py file
-            sandbox.run(self._file_writer(target))
-        finally:
-            if os.path.exists(target):
-                os.remove(target)
-
     def test_setup_py_with_BOM(self):
         """
         It should be possible to execute a setup.py with a Byte Order Mark