Pythonista Lab 1.0(8): call to "reminders.get_reminders" causes crash

[RichardPotthoff]

This code caused Pythonista Lab to crash:

import reminders
ListName = 'Shopping'
calendars = {calendar.title: calendar for calendar in reminders.get_all_calendars()}

if ListName not in calendars:
  print(f'Calendar "{ListName}" not found.')
else:
  todo = reminders.get_reminders(calendar=calendars[ListName], completed=False)
  data = "\r\n".join(r.title for r in todo)
  if not data:
        data = "No items in list"
  data += "\r\n"
  print (data)

The same code runs without problems in Pythonista3.

[cvpe]

I've installed the faultlog code from dgelessus at https://github.com/dgelessus/pythonista_startup/blob/master/enable_faulthandler.py
as startup notebook, hoping to get more details of the crash reason but I only get the log file here-under.
For info, I've to change one line of original code

    LOGDIR = "faultlog" # os.path.expanduser(u"~/Documents/faultlog")

Fatal Python error: Segmentation fault

Thread 0x0000000172fbb000 (most recent call first):
  File "/private/var/mobile/Containers/Data/Application/68A8F849-C637-4FF1-900B-33421994FCA5/tmp/ipykernel_17244/3436613647.py", line 9 in <module>
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/interactiveshell.py", line 3578 in run_code
faultlog #  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/interactiveshell.py", line 3518 in run_ast_nodes
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/interactiveshell.py", line 3335 in run_cell_async
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/async_helpers.py", line 129 in _pseudo_sync_runner
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/interactiveshell.py", line 3131 in _run_cell
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/interactiveshell.py", line 3076 in run_cell
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/zmqshell.py", line 550 in run_cell
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/ipkernel.py", line 449 in do_execute
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/kernelbase.py", line 779 in execute_request
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/ipkernel.py", line 362 in execute_request
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/inprocess/ipkernel.py", line 87 in execute_request
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/kernelbase.py", line 438 in dispatch_shell
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/events.py", line 90 in _run
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/base_events.py", line 2028 in _run_once
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/base_events.py", line 680 in run_forever
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/base_events.py", line 709 in run_until_complete
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/jupyter_core/utils/__init__.py", line 166 in wrapped
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/inprocess/client.py", line 196 in _dispatch_to_kernel
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/pythonista/pykit_io.py", line 508 in do_execute_msg
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/pythonista/pykit_io.py", line 499 in run
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 993 in run
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/ipkernel.py", line 766 in run_closure
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1042 in _bootstrap_inner
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1013 in _bootstrap

Thread 0x0000000171faf000 (most recent call first):
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/selectors.py", line 549 in select
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/base_events.py", line 1990 in _run_once
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/asyncio/base_events.py", line 680 in run_forever
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/tornado/platform/asyncio.py", line 206 in start
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/ipykernel/iostream.py", line 93 in _thread_main
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 993 in run
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1042 in _bootstrap_inner
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1013 in _bootstrap

Thread 0x0000000170e8b000 (most recent call first):
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 360 in wait
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 660 in wait
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/history.py", line 904 in run
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/IPython/core/history.py", line 62 in only_when_enabled
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/decorator.py", line 233 in fun
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1042 in _bootstrap_inner
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1013 in _bootstrap

Thread 0x000000016fc4f000 (most recent call first):
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 1093 in join
  File "/var/containers/Bundle/Application/4946BE4E-FE44-4A7D-BDFD-D5DCEC9C3D9C/PythonistaLab.app/Frameworks/Py3Kit.framework/pylib/site-packages/pythonista/pykit_io.py", line 502 in run_code_cell

Extension modules: _pykit_io, _appex, console, _ui, _cffi_backend, reminders (total: 6)

[RichardPotthoff]

Here is the crash report from iPad Settings > Privacy & Security > Analytics & Improvements > Analytics Data > PythonistaLab-2025-06-25-102757.ips:

{"roots_installed":0,"app_cohort":"2|date=1749569400000&sf=143441&tid=5e5e1b67b965c784eddb878db07fbd18a42b38353807391c2a78f4cf29f73a06&ttype=e",
"app_name":"PythonistaLab","app_version":"1.0","timestamp":"2025-06-25 10:27:57.00 -0400","slice_uuid":"c5076109-4783-395e-b07f-18ed356bf27e","adam_id":"6741814225",
"build_version":"8","platform":2,"bundleID":"com.omz-software.PythonistaLab","share_with_app_devs":1,"is_first_party":0,
"bug_type":"309","os_version":"iPhone OS 18.4.1 (22E252)","incident_id":"81DE7CC2-510A-4074-AC3F-211BF5870EAA","name":"PythonistaLab","is_beta":1}
...

I googled "bug_type 309", and this is the answer I got:

In Apple crash reports, bug_type: 309 indicates a third-party error or a crash related to a third-party framework or library within your application. These crashes are often tied to specific issues within those external components and not necessarily core iOS or application code.
Here's a more detailed explanation:
Third-party involvement:
When you see bug_type: 309, it's a strong indication that the crash is happening because of a problem in a library, SDK, or other code that was not written by you or Apple directly.
Not always reproducible:
These crashes can be difficult to reproduce consistently because they depend on the specific state of the third-party component and its interaction with your code.
Diagnostic information:
While Apple doesn't provide specific details about these errors, the crash report itself will contain data (like stack traces) that can help you identify the specific third-party component involved and potentially narrow down the cause.
Possible solutions:
Update the third-party library: If a new version of the library is available, updating to the latest version can often resolve the issue.
Review your code: Examine your code to ensure you're using the third-party library correctly and that there are no obvious errors in how you're integrating it.
Contact the library provider: If the issue is with the third-party component itself, you may need to contact the library's developers for support or guidance.

[cvpe]

I didn't even know it was possible to get this kind of (esoteric for me) info.
The log I got was, in the past, sometimes helpful to solve some Pythonista crashes.
But, sincerely, I'm far to be a specialist....
As your problem is reproductible with so small code, I guess that Ole will debug that easily. I'm already happy to have find this startup notebook and that some code from Pythonista also works here.