Nico Raffo wrote:
> Due to a syntax change between python 2 and python 3, there is no way
> to insert a new line at an arbitrary line number into a buffer using
> the python interface without using undocumented parameters in the
> buffer.append() method.
>
> In the existing python 2 interface, the way to insert a line according
> to the documentation is:
>
> :py b[n:n] = ["a new line at line number n"]
>
> In python 3 you are no longer allowed to assign to a slice, so this
> doesn't work anymore.
>
> There is an undocumented second parameter to buffer.append() which
> allows you to add a line number where the new line should be added.
> However this diverges from the standard set of python list methods. If
> the vim module wants to emulate a python list, it should have
> buffer.insert(n, "new line at n"). Otherwise the extra param in
> append() should be documented.
>
> I'll throw in a patch for the new buffer.insert() method if people
> think it's a good idea.
Why not document the extra argument to append()?
:py vim.current.buffer.append(["foobar"], 239)
Seems to work as expected.
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