[Trixie/Python 3.13] TypeError: unhashable type: 'dict' in acpu_web/pages/app.py

[dzhengg]

After connecting to the access point, the web interface fails to load with a 500 Internal Server Error. I am running a fresh install of the latest versions: accesspopup 0.9, 22nd March 2026 installconfig.sh 1.0, 22nd March 2026

Environment

Raspberry Pi Zero 2W

OS

> cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 13 (trixie)"
NAME="Debian GNU/Linux"
VERSION_ID="13"
VERSION="13 (trixie)"
VERSION_CODENAME=trixie
DEBIAN_VERSION_FULL=13.2
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Python

Version

> python3 --version
Python 3.13.5

Packages

> /usr/local/bin/acpu_web/venv/bin/pip list
Package              Version
-------------------- ---------
annotated-doc        0.0.4
annotated-types      0.7.0
anyio                4.13.0
certifi              2026.2.25
charset-normalizer   3.4.7
click                8.3.2
dnspython            2.8.0
email-validator      2.3.0
fastapi              0.135.3
fastapi-cli          0.0.24
fastapi-cloud-cli    0.16.1
fastar               0.10.0
h11                  0.16.0
httpcore             1.0.9
httptools            0.7.1
httpx                0.28.1
idna                 3.11
Jinja2               3.1.6
markdown-it-py       4.0.0
MarkupSafe           3.0.3
mdurl                0.1.2
pip                  25.1.1
pydantic             2.12.5
pydantic_core        2.41.5
pydantic-extra-types 2.11.2
pydantic-settings    2.13.1
Pygments             2.20.0
python-dotenv        1.2.2
python-multipart     0.0.26
pyusb                1.3.1
PyYAML               6.0.3
requests             2.33.1
rich                 14.3.4
rich-toolkit         0.19.7
rignore              0.7.6
sentry-sdk           2.57.0
shellingham          1.5.4
starlette            1.0.0
typer                0.24.1
typing_extensions    4.15.0
typing-inspection    0.4.2
urllib3              2.6.3
uvicorn              0.44.0
uvloop               0.22.1
watchfiles           1.1.1
websockets           16.0

Traceback

> sudo journalctl -u acpu_web_app.service --no-pager --no-full -l
Apr 11 22:46:31 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:31 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:31 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:31 pi uvicorn[5406]: Msg Returned: {'code': 'UPDT', 'args': 0}
Apr 11 22:46:31 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:31 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:31 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:31 pi uvicorn[5406]: Msg Returned: {'code': 'WIAC', 'args': [['AccessPopup', 'wlan0', 'AccessPopup', '88:A2:9E:42:7B:94', 'ap', '192.168.50.5/24']]}
Apr 11 22:46:31 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:31 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:31 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:31 pi uvicorn[5406]: Msg Returned: {'code': 'WIPL', 'args': ['MyNetwork']}
Apr 11 22:46:31 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:31 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:31 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:31 pi uvicorn[5406]: Msg Returned: {'code': 'LANP', 'args': [{'type': 'eth', 'name': 'USB Gadget (shared)', 'autocon': '10', 'active': 'yes', 'devname': 'usb0', 'state': 'activated', 'conip': '10.12.194.1/28'}, {'type': 'eth', 'name': 'USB Gadget (client)', 'autocon': '100', 'active': 'no', 'devname': ''}, {'type': 'eth', 'name': 'netplan-eth0', 'autocon': '0', 'active': 'no', 'devname': ''}]}
Apr 11 22:46:32 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:32 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:32 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:32 pi uvicorn[5406]: Msg Returned: {'code': 'APPL', 'args': [['AccessPopup', 'AccessPopup', 'wlan0', 'wlan0']]}
Apr 11 22:46:32 pi uvicorn[5406]: After sock.recv
Apr 11 22:46:32 pi uvicorn[5406]: Receive Try:
Apr 11 22:46:32 pi uvicorn[5406]: Receive Loop
Apr 11 22:46:32 pi uvicorn[5406]: Msg Returned: {'code': 'HOST', 'args': 'pi\n'}
Apr 11 22:46:32 pi uvicorn[5406]: Active_wifi is: [['AccessPopup', 'wlan0', 'AccessPopup', '88:A2:9E:42:7B:94', 'ap', '192.168.50.5/24']]
Apr 11 22:46:32 pi uvicorn[5406]: Lan Returned: [{'type': 'eth', 'name': 'USB Gadget (shared)', 'autocon': '10', 'active': 'yes', 'devname': 'usb0', 'state': 'activated', 'conip': '10.12.194.1/28'}, {'type': 'eth', 'name': 'USB Gadget (client)', 'autocon': '100', 'active': 'no', 'devname': ''}, {'type': 'eth', 'name': 'netplan-eth0', 'autocon': '0', 'active': 'no', 'devname': ''}]
Apr 11 22:46:32 pi uvicorn[5406]: INFO:     192.168.50.248:56109 - "GET / HTTP/1.1" 500 Internal Server Error
Apr 11 22:46:32 pi uvicorn[5406]: ERROR:    Exception in ASGI application
Apr 11 22:46:32 pi uvicorn[5406]: Traceback (most recent call last):
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/uvicorn/protocols/http/httptools_impl.py", line 420, in run_asgi
Apr 11 22:46:32 pi uvicorn[5406]:     result = await app(  # type: ignore[func-returns-value]
Apr 11 22:46:32 pi uvicorn[5406]:              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:         self.scope, self.receive, self.send
Apr 11 22:46:32 pi uvicorn[5406]:         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:     )
Apr 11 22:46:32 pi uvicorn[5406]:     ^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     return await self.app(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/applications.py", line 1163, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await super().__call__(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/applications.py", line 90, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await self.middleware_stack(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/middleware/errors.py", line 186, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     raise exc
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/middleware/errors.py", line 164, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await self.app(scope, receive, _send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/middleware/exceptions.py", line 63, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
Apr 11 22:46:32 pi uvicorn[5406]:     raise exc
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
Apr 11 22:46:32 pi uvicorn[5406]:     await app(scope, receive, sender)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/middleware/asyncexitstack.py", line 18, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await self.app(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/routing.py", line 660, in __call__
Apr 11 22:46:32 pi uvicorn[5406]:     await self.middleware_stack(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/routing.py", line 680, in app
Apr 11 22:46:32 pi uvicorn[5406]:     await route.handle(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/routing.py", line 276, in handle
Apr 11 22:46:32 pi uvicorn[5406]:     await self.app(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/routing.py", line 134, in app
Apr 11 22:46:32 pi uvicorn[5406]:     await wrap_app_handling_exceptions(app, request)(scope, receive, send)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
Apr 11 22:46:32 pi uvicorn[5406]:     raise exc
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
Apr 11 22:46:32 pi uvicorn[5406]:     await app(scope, receive, sender)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/routing.py", line 120, in app
Apr 11 22:46:32 pi uvicorn[5406]:     response = await f(request)
Apr 11 22:46:32 pi uvicorn[5406]:                ^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/routing.py", line 674, in app
Apr 11 22:46:32 pi uvicorn[5406]:     raw_response = await run_endpoint_function(
Apr 11 22:46:32 pi uvicorn[5406]:                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:     ...<3 lines>...
Apr 11 22:46:32 pi uvicorn[5406]:     )
Apr 11 22:46:32 pi uvicorn[5406]:     ^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/fastapi/routing.py", line 328, in run_endpoint_function
Apr 11 22:46:32 pi uvicorn[5406]:     return await dependant.call(**values)
Apr 11 22:46:32 pi uvicorn[5406]:            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/pages/app.py", line 149, in index
Apr 11 22:46:32 pi uvicorn[5406]:     return templates.TemplateResponse("index.html", {"context":get_nm_update(),"request":request})
Apr 11 22:46:32 pi uvicorn[5406]:            ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/templating.py", line 148, in TemplateResponse
Apr 11 22:46:32 pi uvicorn[5406]:     template = self.get_template(name)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/starlette/templating.py", line 115, in get_template
Apr 11 22:46:32 pi uvicorn[5406]:     return self.env.get_template(name)
Apr 11 22:46:32 pi uvicorn[5406]:            ~~~~~~~~~~~~~~~~~~~~~^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/jinja2/environment.py", line 1016, in get_template
Apr 11 22:46:32 pi uvicorn[5406]:     return self._load_template(name, globals)
Apr 11 22:46:32 pi uvicorn[5406]:            ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/jinja2/environment.py", line 964, in _load_template
Apr 11 22:46:32 pi uvicorn[5406]:     template = self.cache.get(cache_key)
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/jinja2/utils.py", line 477, in get
Apr 11 22:46:32 pi uvicorn[5406]:     return self[key]
Apr 11 22:46:32 pi uvicorn[5406]:            ~~~~^^^^^
Apr 11 22:46:32 pi uvicorn[5406]:   File "/usr/local/bin/acpu_web/venv/lib/python3.13/site-packages/jinja2/utils.py", line 515, in __getitem__
Apr 11 22:46:32 pi uvicorn[5406]:     rv = self._mapping[key]
Apr 11 22:46:32 pi uvicorn[5406]:          ~~~~~~~~~~~~~^^^^^
Apr 11 22:46:32 pi uvicorn[5406]: TypeError: unhashable type: 'dict'

Reproduction Steps

1. Fresh install of AccessPopup using sudo ./installconfig.sh
2. Enable web interface via option 8-1
3. Launch access point mode using sudo accesspopup -a
4. Provide username and password to AccessPopup network
5. Browser at http://192.168.50.5:8052/ shows Internal Server Error
6. Logs show TypeError: unhashable type: 'dict'

[RaspberryConnect]

Hi dzhengg
Thanks for the bug report. I didn't get an email so just spotted this. I will look into as soon as I can and get back to you.

[RaspberryConnect]

The issue was due to the Starlette library going from version 0.52 to version 1 since AccessPopup was released.
I will need to investigate further what is causing the issue.
The python library versions have been added to the requirement.txt so the web app works again.

You will need to uninstall the current version of AccessPopup with 8-4. Then with the updated files in the installation folder, reinstall all to get the changes.

Thanks for highlighting this.

[dzhengg]

Thanks, this is working for me now. Really appreciate this tool by the way, I haven't found anything comparable for the newer raspberry pi OSes