When asynchronously rendering templates that make use of namespaces, rendering fails on AttributeError: __class__.
No error is raised.
{% set ns = namespace(foo=[]) %}Traceback (most recent call last):
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/utils.py", line 699, in __getattribute__
return self.__attrs[name]
KeyError: '__class__'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "namespace.py", line 12, in <module>
asyncio.get_event_loop().run_until_complete(main())
File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
return future.result()
File "namespace.py", line 10, in main
await environment.from_string(template).render_async()
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/asyncsupport.py", line 65, in render_async
return self.environment.handle_exception()
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/environment.py", line 832, in handle_exception
reraise(*rewrite_traceback_stack(source=source))
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/_compat.py", line 28, in reraise
raise value.with_traceback(tb)
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/asyncsupport.py", line 25, in concat_async
await collect()
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/asyncsupport.py", line 22, in collect
async for event in async_gen:
File "<template>", line 1, in top-level template code
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/asyncsupport.py", line 173, in auto_await
if inspect.isawaitable(value):
File "/usr/lib/python3.8/inspect.py", line 234, in isawaitable
isinstance(object, collections.abc.Awaitable))
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/abc.py", line 98, in __instancecheck__
return _abc_instancecheck(cls, instance)
File "/home/bart/tmp/jinja2-async-namespacce/venv/lib/python3.8/site-packages/jinja2/utils.py", line 701, in __getattribute__
raise AttributeError(name)
AttributeError: __class__
When asynchronously rendering templates that make use of namespaces, rendering fails on
AttributeError: __class__.Expected Behavior
No error is raised.
Actual Behavior
Using namespaces when rendering templates asynchronously fails on the
isawaitable()check performed onNamespace.Template Code
Reproduction:
Full Traceback
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