Datetime difference failure with `list`

[privong]

I'm running todoman v3.7.0 and have been experiencing an issue where attempting to list tasks results in a crash and the following error:

$ todo -v DEBUG list personal
debug: No colour for list /home/george/.calendars/travel
debug: No colour for list /home/george/.calendars/work                              
debug: No colour for list /home/george/.calendars/school                            
debug: No colour for list /home/george/.calendars/contact_birthdays                 
debug: No colour for list /home/george/.calendars/personal                          
debug: File already in cache: /home/george/.calendars/travel/GJE8F3ZLQ0UPYSR5FWZ2NIR1QM6PS7Q4O6JZ.ics
[...several thousand more file already in cache notices...]
debug:
debug:               SELECT todos.*, files.list_name, files.path
debug:                 FROM todos, files
debug:                WHERE todos.file_path = files.path AND status IN (?, ?) AND files.list_n
ame IN (?)
debug:             ORDER BY
debug:                 completed_at DESC,
debug:                 priority IS NOT NULL, priority DESC,
debug:                 due IS NOT NULL, due DESC,
debug:                 created_at ASC
debug:
debug:
debug: ['NEEDS-ACTION', 'IN-PROCESS', 'personal']
Traceback (most recent call last):
  File "/usr/bin/todo", line 11, in <module>
    load_entry_point('todoman==3.7.0', 'console_scripts', 'todo')()
  File "/usr/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3.7/site-packages/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/usr/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3.7/site-packages/todoman/cli.py", line 34, in wrapper
    return f(*a, **kw)
  File "/usr/lib/python3.7/site-packages/todoman/cli.py", line 645, in list
    click.echo(ctx.formatter.compact_multiple(todos))
  File "/usr/lib/python3.7/site-packages/todoman/formatters.py", line 68, in compact_multiple
    due = self.format_datetime(todo.due)
  File "/usr/lib/python3.7/site-packages/todoman/formatters.py", line 219, in format_datetime
    rv = humanize.naturaltime(self.now - dt)
TypeError: unsupported operand type(s) for -: 'datetime.datetime' and 'datetime.date'

Running todo list on other task lists succeeds, which leads me to believe that there's some issue with a specific task in that list, but I haven't been able to identify which (if any) tasks are causing this problem.

In case it's helpful, I'm running this on Arch Linux with kernel version 5.3.8-arch1-1.

[privong]

I've been able to reproduce this by creating a task (on my iPhone) which only has a date deadline and not a time deadline:

The resulting ICS file is:

BEGIN:VCALENDAR
CALSCALE:GREGORIAN
PRODID:-//Apple Inc.//iOS 13.2.2//EN
VERSION:2.0
BEGIN:VTODO
CREATED:20191111T190030Z
DTSTAMP:20191111T190037Z
DTSTART;VALUE=DATE:20191112
DUE;VALUE=DATE:20191112
LAST-MODIFIED:20191111T190036Z
STATUS:NEEDS-ACTION
SUMMARY:Test
UID:4A55070D-34BF-4B59-A039-81E4F38C6D4F
END:VTODO
END:VCALENDAR

I guess the issue is the "DUE;" line which lacks a time.

[WhyNotHugo]

This is something that we should support.

Thanks for narrowing it down. The ICS file is perfect for debugging this, I'll try to look at it soonish.

[privong]

@WhyNotHugo Do you have a guess at when it might be possible to address this? No huge rush, but I intermittently have to work around this issue, so I was curious.

[chrpinedo]

I have exactly this issue if i don't provide a due time to the due date. If I set due to "2020/01/18" it breaks todoman, If i set due to "2020/01/18 23:59:59", there is no problem.