Error: cannot compare instances of NoneType #56
Description
Hello!
When trying to add a TUI to my program, see jeertmans/manim-slides#249, the TUI crashes on two subcommands: present and wizard. The crash occurs when loading the subcommand's documentation, not actually running it.
FYI, both commands launch some GUI with PySide6.
I have attached the full error traceback below. As it is quite long and not very easy to understand, I was hoping to get some help here :-)
Thanks!
───────────────────── Traceback (most recent call last) ──────────────────────╮
│ /home/eertmans/.cache/pypoetry/virtualenvs/manim-slides-M-PeeMP--py3.10/lib/ │
│ python3.10/site-packages/trogon/trogon.py:171 in update_command_data │
│ │
│ 168 │ @on(CommandForm.Changed) │
│ 169 │ def update_command_data(self, event: CommandForm.Changed) -> None: │
│ 170 │ │ self.command_data = event.command_data │
│ ❱ 171 │ │ self._update_execution_string_preview( │
│ 172 │ │ │ self.selected_command_schema, self.command_data │
│ 173 │ │ ) │
│ 174 │
│ │
│ ╭───────── locals ─────────╮ │
│ │ event = Changed() │ │
│ │ self = CommandBuilder() │ │
│ ╰──────────────────────────╯ │
│ │
│ /home/eertmans/.cache/pypoetry/virtualenvs/manim-slides-M-PeeMP--py3.10/lib/ │
│ python3.10/site-packages/trogon/trogon.py:193 in │
│ _update_execution_string_preview │
│ │
│ 190 │ │ │ │ "command-name-syntax" │
│ 191 │ │ │ ) │
│ 192 │ │ │ prefix = Text(f"{self.click_app_name} ", command_name_synt │
│ ❱ 193 │ │ │ new_value = command_data.to_cli_string(include_root_comman │
│ 194 │ │ │ highlighted_new_value = Text.assemble(prefix, self.highlig │
│ 195 │ │ │ prompt_style = self.get_component_rich_style("prompt") │
│ 196 │ │ │ preview_string = Text.assemble(("$ ", prompt_style), highl │
│ │
│ ╭───────────────────────────────── locals ─────────────────────────────────╮ │
│ │ command_data = UserCommandData( │ │
│ │ │ name='root', │ │
│ │ │ options=[ │ │
│ │ │ │ UserOptionData( │ │
│ │ │ │ │ name=[ │ │
│ │ │ │ │ │ '--notify-outdated-version' │ │
│ │ │ │ │ ], │ │
│ │ │ │ │ value=(True,), │ │
│ │ │ │ │ option_schema=OptionSchema( │ │
│ │ │ │ │ │ name=[ │ │
│ │ │ │ │ │ │ │ │
│ │ Discontinued because GitHub limits the length. See attached file. │ │
[error.txt](https://github.com/Textualize/trogon/files/12407498/error.txt)
│ │ │ │ │ }, │ │
│ │ │ │ │ parent=None, │ │
│ │ │ │ │ is_group=True │ │
│ │ │ │ ), │ │
│ │ │ │ is_group=False │ │
│ │ │ ) │ │
│ │ ) │ │
│ │ value_data = [('None',)] │ │
│ │ values_are_defaults = True │ │
│ │ values_supplied = True │ │
│ ╰──────────────────────────────────────────────────────────────────────────╯ │
╰──────────────────────────────────────────────────────────────────────────────╯
TypeError: '<' not supported between instances of 'NoneType' and 'NoneType'