bug#71170: 30.0.50; hs-hide-all in python mode not works as expected

[kobarity]

Eli Zaretskii wrote:
> 
> > From: lorniu <lorniu@gmail.com>
> > Date: Fri, 24 May 2024 16:40:39 +0800
> > 
> > 
> > When I run `hs-hide-all` in python mode for some python files,
> > It cannot work properly.
> > 
> > For example, the `class` in following code can not be hide:
> > 
> >   ```
> >    if TYPE_CHECKING:
> >        Base64FileInput = Union[IO[bytes], PathLike[str]]
> >        FileContent = Union[IO[bytes], bytes, PathLike[str]]
> >    else:
> >        Base64FileInput = Union[IO[bytes], PathLike]
> >        FileContent = Union[IO[bytes], bytes, PathLike]  # PathLike is not 
> > subscriptable in Python 3.8.
> >    
> >    class aaa:
> >        ...
> >   ```
> > 
> > Maybe the issue caused by function in `python-hideshow-find-next-block`
> > of python.el, that the comment regexp should be "^#" instead of "#"?
> 
> Shouldn't that be something like "^[:space:]*#" instead?

Hi lorniu,
Thanks for pointing out this issue.
After running `hs-hide-all', the buffer will be like this:

```
   if TYPE_CHECKING:...
   else:...  # PathLike is not subscriptable in Python 3.8.
   
   class aaa:
       ...
```

As you pointed out, the class aaa is not hidden.  However, it is also
a problem that the comment is not hidden.

I think it is better to fix `python-hideshow-forward-sexp-function' to
move the point to the end of the line to include the comment.
Attached is the patch to do that.

0001-Fix-hiding-a-Python-block-ending-with-a-comment.patch
Description: Binary data