cant run datatable*.py examples

[alberto-bortoni]

Perhaps something very simple, but I get this error as I run any of the datatable examples:
Thank you!!

Traceback (most recent call last):
File "/media/sf_vboxshare/urwid-examples/panwid-main/examples/datatable_simple.py", line 62, in
main()
File "/media/sf_vboxshare/urwid-examples/panwid-main/examples/datatable_simple.py", line 53, in main
loop = urwid.MainLoop(
File "/home/money/.local/lib/python3.10/site-packages/urwid/event_loop/main_loop.py", line 127, in init
screen.register_palette(palette)
File "/home/money/.local/lib/python3.10/site-packages/urwid/display_common.py", line 1041, in register_palette
self.register_palette_entry(*item)
File "/home/money/.local/lib/python3.10/site-packages/urwid/display_common.py", line 1122, in register_palette_entry
mono = AttrSpec(mono, DEFAULT, 1)
File "/home/money/.local/lib/python3.10/site-packages/urwid/display_common.py", line 597, in init
raise AttrSpecError(
urwid.display_common.AttrSpecError: foreground/background ('white'/'default') require more colors than have been specified (1).

[doctorcolossus]

Same here.

Actually I get that error for datatable.py, datatable_simple.py, dropdown.py, and progressbar.py.

For datatable_simple_query.py, I instead get:
AttributeError: module 'pydantic' has no attribute 'main'
The database examples give this error too if the palette error is fixed (I did this by removing the palette = palette argument to urwid.MainLoop).

sparkwidgets.py gives:
AttributeError: module 'collections' has no attribute 'Iterable'

dialog.py runs fine.

Using Python 3.11.6.