Merge pull request #1181 from bartfeenstra/async-namespace

Allow namespaces to be used in asynchronously rendered templates.

Author: davidism

CHANGES.rst

@@ -23,6 +23,8 @@ Unreleased
  :pr:`1182`
 - Fix line numbers in error messages when newlines are stripped.
  :pr:`1178`
+- The special ``namespace()`` assignment object in templates works in
+ async environments. :issue:`1180`
 
 
 Version 2.11.1

src/jinja2/utils.py

@@ -697,7 +697,8 @@ def __init__(*args, **kwargs): # noqa: B902
  self.__attrs = dict(*args, **kwargs)
 
  def __getattribute__(self, name):
- if name == "_Namespace__attrs":
+ # __class__ is needed for the awaitable check in async mode
+ if name in {"_Namespace__attrs", "__class__"}:
  return object.__getattribute__(self, name)
  try:
  return self.__attrs[name]

tests/test_async.py

@@ -578,3 +578,14 @@ def test_bare_async(self, test_env_async):
  def test_awaitable_property_slicing(self, test_env_async):
  t = test_env_async.from_string("{% for x in a.b[:1] %}{{ x }}{% endfor %}")
  assert t.render(a=dict(b=[1, 2, 3])) == "1"
+
+
+def test_namespace_awaitable(test_env_async):
+ async def _test():
+ t = test_env_async.from_string(
+ '{% set ns = namespace(foo="Bar") %}{{ ns.foo }}'
+ )
+ actual = await t.render_async()
+ assert actual == "Bar"
+
+ run(_test())