dev-python/markdown-3.0.0 dropped the deprecated support for passing extension parameters in the extension name. dev-python/markups-3.0.0 is the first version that no longer uses this mechanism. Unfortunately because markups-3.0.0 is not in the tree yet, currently ReText is broken on a completely updated system (retext-7.0.3, markdown-3.0.1, markups-2.0.0). The preview pane no longer works, because the markup converter thread gets this exception: Exception occurred while parsing document: Traceback (most recent call last): File "/usr/lib64/python3.5/site-packages/ReText/tab.py", line 228, in updatePreviewBox self.converted = self.converterProcess.get_result() File "/usr/lib64/python3.5/site-packages/ReText/converterprocess.py", line 172, in get_result raise ConversionError(result) ReText.converterprocess.ConversionError: The background markup conversion process received this exception: Traceback (most recent call last): File "/usr/lib64/python3.5/site-packages/ReText/converterprocess.py", line 74, in _converter_process_func current_markup = markup_class(job['filename']) File "/usr/lib64/python3.5/site-packages/markups/markdown.py", line 145, in __init__ self._apply_extensions() File "/usr/lib64/python3.5/site-packages/markups/markdown.py", line 131, in _apply_extensions self.md = self.markdown.Markdown(extensions=extensions_final, output_format='html4') File "/usr/lib64/python3.5/site-packages/markdown/core.py", line 100, in __init__ configs=kwargs.get('extension_configs', {})) File "/usr/lib64/python3.5/site-packages/markdown/core.py", line 126, in registerExtensions ext = self.build_extension(ext, configs.get(ext, {})) File "/usr/lib64/python3.5/site-packages/markdown/core.py", line 166, in build_extension module = importlib.import_module(ext_name) File "/usr/lib64/python3.5/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 985, in _gcd_import File "<frozen importlib._bootstrap>", line 968, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked ImportError: No module named 'markups.mdx_mathjax(enable_dollar_delimiter=False)' To fix this a later version of markups is required and some blockers should be added to prevent incompatible versions of markups and markdown to be installed simultaneously. Note that markups-3.0.0 also has a dependency on the new package python-markdown-math (it was previously bundled). This package has been recently added to the tree for https://bugs.gentoo.org/668428
dev-python/markups-3.0.0 successfully builds and now renders previews for markdown in app-editors/retext-7.0.4-r1 after allowing both with ~amd64 accept keyword.
Hi Maurice, sorry that I didn't answer earlier. I think it was fixed with 953667cbe0955016a1042bc140c70a02560c3e2b (2018-11-17, got delayed some weeks IIRC as I screwed up the PR on github.com badly) so I’ll close this now. Thanks to Liam for pinging me about this with your message.
