- temporarily hid --isolate-tests option, as it isn't fully baked;

src/slipcover/__main__.py

@@ -140,7 +140,7 @@ def main():
 
     ap.add_argument('--isolate-tests', default=False,
                     action=(argparse.BooleanOptionalAction if sys.version_info[0:2] >= (3,9) else 'store_true'),
-                    help='run pytest tests in isolation, to try to work around state pollution')
+                    help=argparse.SUPPRESS) #'run pytest tests in isolation, to try to work around state pollution')
 
     # intended for slipcover development only
     ap.add_argument('--silent', action='store_true', help=argparse.SUPPRESS)

src/slipcover/isolate.py

@@ -19,6 +19,9 @@ def pytest_ignore_collect(self, path, config):
         if not str(path).endswith('.py'):
             return False    # only fork for test modules, not directories, etc.
 
+        # FIXME manage stdout/stderr to avoid children clobbering output,
+        # FIXME properly report executed tests
+
         if (pid := os.fork()):
             pid, status = os.waitpid(pid, 0)
             if status: