homepage

My guess is that the issue is related to the sys.modules manipulation, i.e. these parts of the integration test harness:
 def smoke_test(self, *args):
 old_argv = list(sys.argv)
 del sys.argv[:]
 sys.argv.append(self.build_py)
 sys.argv.extend(args)
 old_modules = dict(sys.modules)
 old_meta_path = list(sys.meta_path)
 old_cwd = getcwd()
 chdir(self.tmp_directory)
 try:
 return run_path(self.build_py, run_name="__main__")
 except SystemExit as e:
 self.assertEqual(e.code, 0, "Test did not exit successfully")
 finally:
 del sys.argv[:]
 sys.argv.extend(old_argv)
 sys.modules.clear()
 sys.modules.update(old_modules)
 del sys.meta_path[:]
 sys.meta_path.extend(old_meta_path)
 chdir(old_cwd)
 def smoke_test_module(self, module, *args):
 old_argv = list(sys.argv)
 del sys.argv[:]
 sys.argv.append("bogus")
 sys.argv.extend(args)
 old_modules = dict(sys.modules)
 old_meta_path = list(sys.meta_path)
 old_cwd = getcwd()
 chdir(self.tmp_directory)
 try:
 return run_module(module, run_name="__main__")
 except SystemExit as e:
 self.assertEqual(e.code, 0, "Test did not exit successfully")
 finally:
 del sys.argv[:]
 sys.argv.extend(old_argv)
 sys.modules.clear()
 sys.modules.update(old_modules)
 del sys.meta_path[:]
 sys.meta_path.extend(old_meta_path)
 chdir(old_cwd)