Intermediate changes

1 files changed, 14 insertions, 1 deletions

diff --git a/contrib/python/Flask/py3/flask/templating.py b/contrib/python/Flask/py3/flask/templating.py
index bb3e7fd5ddb..507615c5ccc 100644
--- a/contrib/python/Flask/py3/flask/templating.py
+++ b/contrib/python/Flask/py3/flask/templating.py
@@ -131,7 +131,8 @@ def _render(template: Template, context: dict, app: "Flask") -> str:
 
 
 def render_template(
-    template_name_or_list: t.Union[str, t.List[str]], **context: t.Any
+    template_name_or_list: t.Union[str, Template, t.List[t.Union[str, Template]]],
+    **context: t.Any
 ) -> str:
     """Renders a template from the template folder with the given
     context.
@@ -143,6 +144,12 @@ def render_template(
                     context of the template.
     """
     ctx = _app_ctx_stack.top
+
+    if ctx is None:
+        raise RuntimeError(
+            "This function can only be used when an application context is active."
+        )
+
     ctx.app.update_template_context(context)
     return _render(
         ctx.app.jinja_env.get_or_select_template(template_name_or_list),
@@ -161,5 +168,11 @@ def render_template_string(source: str, **context: t.Any) -> str:
                     context of the template.
     """
     ctx = _app_ctx_stack.top
+
+    if ctx is None:
+        raise RuntimeError(
+            "This function can only be used when an application context is active."
+        )
+
     ctx.app.update_template_context(context)
     return _render(ctx.app.jinja_env.from_string(source), context, ctx.app)