Broken with mistune 2.0

[reinerh]

Debian recently upgraded mistune from 0.8.4 to 2.0.0.
Unfortunately the new version is not backwards compatible and breaks lookatme.

It fails to start with the following error:

Traceback (most recent call last):
  File "/usr/bin/lookatme", line 33, in <module>
    sys.exit(load_entry_point('lookatme==2.3.0', 'console_scripts', 'lookatme')())
  File "/usr/lib/python3/dist-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/lookatme/__main__.py", line 122, in main
    pres = Presentation(
  File "/usr/lib/python3/dist-packages/lookatme/pres.py", line 54, in __init__
    self.reload(data=input_stream.read())
  File "/usr/lib/python3/dist-packages/lookatme/pres.py", line 87, in reload
    self.meta, self.slides = parser.parse(data)
  File "/usr/lib/python3/dist-packages/lookatme/parser.py", line 33, in parse
    input_data, slides = self.parse_slides(meta, input_data)
  File "/usr/lib/python3/dist-packages/lookatme/parser.py", line 44, in parse_slides
    md = mistune.Markdown()
TypeError: __init__() missing 1 required positional argument: 'renderer'

I tried to change md = mistune.Markdown() with md = mistune.create_markdown(), but then it fails a bit later with:

Traceback (most recent call last):
  File "/usr/bin/lookatme", line 33, in <module>
    sys.exit(load_entry_point('lookatme==2.3.0', 'console_scripts', 'lookatme')())
  File "/usr/lib/python3/dist-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/lookatme/__main__.py", line 122, in main
    pres = Presentation(
  File "/usr/lib/python3/dist-packages/lookatme/pres.py", line 54, in __init__
    self.reload(data=input_stream.read())
  File "/usr/lib/python3/dist-packages/lookatme/pres.py", line 87, in reload
    self.meta, self.slides = parser.parse(data)
  File "/usr/lib/python3/dist-packages/lookatme/parser.py", line 33, in parse
    input_data, slides = self.parse_slides(meta, input_data)
  File "/usr/lib/python3/dist-packages/lookatme/parser.py", line 50, in parse_slides
    num_hrules, hinfo = self._scan_for_smart_split(tokens)
  File "/usr/lib/python3/dist-packages/lookatme/parser.py", line 121, in _scan_for_smart_split
    hinfo["counts"][token["level"]] += 1
KeyError: 'level'

As many more packages got broken by the upgrade, it looks like the upstream version will get temporarily reverted again in Debian: https://bugs.debian.org/1001591
But in a few months 2.0 will then be the only version available again.

Environment:

• Debian unstable
• Lookatme Version 2.3.0

[d0c-s4vage]

Thank you for reporting this! Lookatme should probably upgrade to the newer mistune anyways.

[d0c-s4vage]

I'm closing this as lookatme is moving away from mistune with v3.0.

[aikooo7]

This is still a issue:

lookatme Apresentação.md                                                                                                           Traceback (most recent call last):                                                                                                     File "/usr/sbin/lookatme", line 33, in <module>                                                                                        sys.exit(load_entry_point('lookatme===-VERSION-', 'console_scripts', 'lookatme')())                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                 File "/usr/lib/python3.11/site-packages/click/core.py", line 1157, in __call__                                                         return self.main(*args, **kwargs)                                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                  File "/usr/lib/python3.11/site-packages/click/core.py", line 1078, in main                                                             rv = self.invoke(ctx)                                                                                                                     ^^^^^^^^^^^^^^^^                                                                                                              File "/usr/lib/python3.11/site-packages/click/core.py", line 1434, in invoke                                                           return ctx.invoke(self.callback, **ctx.params)                                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                     File "/usr/lib/python3.11/site-packages/click/core.py", line 783, in invoke                                                            return __callback(*args, **kwargs)                                                                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                 File "/usr/lib/python3.11/site-packages/lookatme/__main__.py", line 122, in main                                                       pres = Presentation(                                                                                                                        ^^^^^^^^^^^^^                                                                                                               File "/usr/lib/python3.11/site-packages/lookatme/pres.py", line 54, in __init__
    self.reload(data=input_stream.read())
  File "/usr/lib/python3.11/site-packages/lookatme/pres.py", line 87, in reload
    self.meta, self.slides = parser.parse(data)
                             ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/lookatme/parser.py", line 33, in parse
    input_data, slides = self.parse_slides(meta, input_data)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/lookatme/parser.py", line 44, in parse_slides
    md = mistune.Markdown()
         ^^^^^^^^^^^^^^^^^^
TypeError: Markdown.__init__() missing 1 required positional argument: 'renderer'

cat Apresentação.md
   1   │ # This is a Normal Slide
   2   │
   3   │ With some content.
   4   │
   5   │ ---
   6   │
   7   │ # This is a Multi-part Slide
   8   │
   9   │ - This is the first part.
  10   │
  11   │ <!-- stop -->
  12   │
  13   │ - And this is the second part.
  14   │
  15   │ <!-- stop -->
  16   │
  17   │ - Parts are separated by a `<!-- stop -->` paragraph.

I installed using yay -S python-lookatme.

[aikooo7]

I'm going to ping you @d0c-s4vage just because this is closed and would probably not see it otherwise.