Add a Table widget with headers option (when label is None and value ends with '.csv' and when value is a list of list)

[fgallaire]

No description provided.

[PierreRaybaut]

This one looks promising but is it really finished?

Because, when running the example, I noticed that some tables are editable, some aren't. And editable fields are reset to blank fields when double-clicking (I'm not sure that it's the expected behavior).

[fgallaire]

Yes the behaviour is alright:

The two first tables are 'insider fields', list of lists, they have a label and your data that you can edit and they return the new values.
The four last tables are 'outsider fields', CSV files, they don't have label (mimic with a comment 'outsider fields' that you can't edit too) and you can just view the data. They have some useful extra syntax.

Same behaviour for the TreeView with 'insider' modifiable dict and 'outsider' read-only XML and JSON files.

[PierreRaybaut]

The two first tables are 'insider fields', list of lists, they have a label and your data that you can edit and they return the new values.

Ok but when you are editing one of these fields, the value is deleted:

1. Edit a field by double-clicking on it.
2. The field is edited (text cursor is blinking) but cell value has been removed in the process
   => I don't think that's intended. The cell value should be kept as it is when edited.

Select a cell:

Double-click (the cell contents are removed):