/login page broken after upgrading to fastapi 0.70.0

[Yzoni]

The login page templating seems to be broken with fastapi 0.70.0/Starlette 0.16.0.

2021-10-12 13:33:08,118 - uvicorn.access - INFO - 127.0.0.1:59355 - "GET /login HTTP/1.1" 500
2021-10-12 13:33:08,119 - uvicorn.error - ERROR - Exception in ASGI application
Traceback (most recent call last):
  File "/path/python3.9/site-packages/uvicorn/protocols/http/httptools_impl.py", line 375, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/path/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 75, in __call__
    return await self.app(scope, receive, send)
  File "/path/python3.9/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/path/python3.9/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/path/python3.9/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc
  File "/path/python3.9/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/path/python3.9/site-packages/starlette/middleware/sessions.py", line 77, in __call__
    await self.app(scope, receive, send_wrapper)
  File "/path/python3.9/site-packages/starlette/middleware/authentication.py", line 48, in __call__
    await self.app(scope, receive, send)
  File "/path/python3.9/site-packages/starlette_context/middleware/raw_middleware.py", line 96, in __call__
    await self.app(scope, receive, send_wrapper)
  File "/path/python3.9/site-packages/starlette/middleware/cors.py", line 84, in __call__
    await self.app(scope, receive, send)
  File "/path/python3.9/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc
  File "/path/python3.9/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/path/python3.9/site-packages/starlette/routing.py", line 656, in __call__
    await route.handle(scope, receive, send)
  File "/path/python3.9/site-packages/starlette/routing.py", line 259, in handle
    await self.app(scope, receive, send)
  File "/path/python3.9/site-packages/starlette/routing.py", line 61, in app
    response = await func(request)
  File "/path/python3.9/site-packages/fastapi_aad_auth/ui/__init__.py", line 123, in login
    return self._login(request)
  File "/path/python3.9/site-packages/fastapi_aad_auth/ui/__init__.py", line 64, in _login
    return self.login_templates.TemplateResponse(self.login_template_path.name, context)  # type: ignore
  File "/path/python3.9/site-packages/starlette/templating.py", line 87, in TemplateResponse
    return _TemplateResponse(
  File "/path/python3.9/site-packages/starlette/templating.py", line 33, in __init__
    content = template.render(context)
  File "/path/python3.9/site-packages/jinja2/environment.py", line 1304, in render
    self.environment.handle_exception()
  File "/path/python3.9/site-packages/jinja2/environment.py", line 925, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "/path/python3.9/site-packages/fastapi_aad_auth/ui/login.html", line 1, in top-level template code
    {% extends "fastapi_aad_auth.ui:base.html" %}
  File "/path/python3.9/site-packages/jinja2/loaders.py", line 214, in get_source
    raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: fastapi_aad_auth.ui:base.html

[nickroci]

+1 on this weird thing is I can't repo it on windows only Linux

[nickroci]

FYI they renamed get_env to _create_env in starlette jinja2templates which breaks the overridden stuff in the jinja.py. Can't raise a pr for it atm

[robintw]

I've just run into this problem too. For me, pinning fastapi to v0.69.0 solved the problem temporarily. If anyone is able to do a more permanent fix then that'd be great.