fix incorrect mypy based assertions

pytest-dev · Jun 5, 2021 · 628cd88 · 628cd88
1 parent b8604de
commit 628cd88
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/_pytest/nodes.py b/src/_pytest/nodes.py
@@ -566,7 +566,6 @@ def __init__(
                 assert path is None
                 path = path_or_parent
 
-        assert parent is not None
         path, fspath = _imply_path(path, fspath=fspath)
         if name is None:
             name = path.name
@@ -580,7 +579,9 @@ def __init__(
                 name = name.replace(os.sep, SEP)
         self.path = path
 
-        session = session or parent.session
+        if session is None:
+            assert parent is not None
+            session = parent.session
 
         if nodeid is None:
             try: