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269 lines
8.2 KiB
269 lines
8.2 KiB
from __future__ import annotations
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import importlib
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import inspect
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import re
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from collections import OrderedDict, namedtuple
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from typing import Any, Dict
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from docutils import nodes
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from sphinx import addnodes, application
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from sphinx.locale import _
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from sphinx.util.docutils import SphinxDirective
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class attributetable(nodes.General, nodes.Element):
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pass
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class attributetablecolumn(nodes.General, nodes.Element):
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pass
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class attributetabletitle(nodes.TextElement):
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pass
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class attributetableplaceholder(nodes.General, nodes.Element):
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pass
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class attributetablebadge(nodes.TextElement):
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pass
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class attributetable_item(nodes.Part, nodes.Element):
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pass
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def visit_attributetable_node(self, node):
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class_ = node["python-class"]
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self.body.append(f'<div class="py-attribute-table" data-move-to-id="{class_}">')
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def visit_attributetablecolumn_node(self, node):
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self.body.append(self.starttag(node, 'div', CLASS='py-attribute-table-column'))
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def visit_attributetabletitle_node(self, node):
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self.body.append(self.starttag(node, 'span'))
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def visit_attributetablebadge_node(self, node):
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attributes = {
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'class': 'py-attribute-table-badge',
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'title': node['badge-type'],
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}
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self.body.append(self.starttag(node, 'span', **attributes))
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def visit_attributetable_item_node(self, node):
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self.body.append(self.starttag(node, 'li', CLASS='py-attribute-table-entry'))
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def depart_attributetable_node(self, node):
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self.body.append('</div>')
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def depart_attributetablecolumn_node(self, node):
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self.body.append('</div>')
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def depart_attributetabletitle_node(self, node):
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self.body.append('</span>')
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def depart_attributetablebadge_node(self, node):
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self.body.append('</span>')
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def depart_attributetable_item_node(self, node):
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self.body.append('</li>')
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_name_parser_regex = re.compile(r'(?P<module>[\w.]+\.)?(?P<name>\w+)')
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class PyAttributeTable(SphinxDirective):
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has_content = False
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = False
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option_spec = {}
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def parse_name(self, content: str):
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path, name = _name_parser_regex.match(content).groups()
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if path:
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modulename = path.rstrip('.')
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else:
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modulename = self.env.temp_data.get('autodoc:module')
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if not modulename:
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modulename = self.env.ref_context.get('py:module')
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if modulename is None:
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raise RuntimeError('modulename somehow None for %s in %s.' % (content, self.env.docname))
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return modulename, name
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def run(self):
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"""If you're curious on the HTML this is meant to generate:
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<div class="py-attribute-table">
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<div class="py-attribute-table-column">
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<span>_('Attributes')</span>
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<ul>
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<li>
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<a href="...">
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</li>
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</ul>
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</div>
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<div class="py-attribute-table-column">
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<span>_('Methods')</span>
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<ul>
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<li>
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<a href="..."></a>
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<span class="py-attribute-badge" title="decorator">D</span>
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</li>
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</ul>
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</div>
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</div>
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However, since this requires the tree to be complete
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and parsed, it'll need to be done at a different stage and then
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replaced.
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"""
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content = self.arguments[0].strip()
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node = attributetableplaceholder('')
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modulename, name = self.parse_name(content)
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node['python-doc'] = self.env.docname
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node['python-module'] = modulename
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node['python-class'] = name
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node['python-full-name'] = f'{modulename}.{name}'
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return [node]
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def build_lookup_table(env):
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# Given an environment, load up a lookup table of
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# full-class-name: objects
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result = {}
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domain = env.domains['py']
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ignored = {
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'data', 'exception', 'module', 'class',
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}
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for (fullname, _, objtype, docname, _, _) in domain.get_objects():
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if objtype in ignored:
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continue
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classname, _, child = fullname.rpartition('.')
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try:
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result[classname].append(child)
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except KeyError:
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result[classname] = [child]
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return result
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TableElement = namedtuple('TableElement', 'fullname label badge')
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def process_attributetable(app: application.Sphinx, doctree, fromdocname: str):
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env = app.builder.env
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lookup = build_lookup_table(env)
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for node in doctree.traverse(attributetableplaceholder):
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modulename, classname, fullname = node['python-module'], node['python-class'], node['python-full-name']
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groups = get_class_results(lookup, modulename, classname, fullname)
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table = attributetable('')
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for label, subitems in groups.items():
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if not subitems:
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continue
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table.append(class_results_to_node(label, sorted(subitems, key=lambda c: c.label)))
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table['python-class'] = fullname
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if not table:
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node.replace_self([])
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else:
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node.replace_self([table])
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def get_class_results(lookup: Dict[str, Any], modulename: str, name: str, fullname: str):
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module = importlib.import_module(modulename)
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cls = getattr(module, name)
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groups = OrderedDict([
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(_('Attributes'), []),
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(_('Methods'), []),
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])
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try:
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members = lookup[fullname]
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except KeyError:
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return groups
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for attr in members:
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attrlookup = f'{fullname}.{attr}'
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key = _('Attributes')
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badge = None
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label = attr
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value = None
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for base in cls.__mro__:
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value = base.__dict__.get(attr)
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if value is not None:
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break
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if value is not None:
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doc = value.__doc__ or ''
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if inspect.iscoroutinefunction(value) or doc.startswith('|coro|'):
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key = _('Methods')
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badge = attributetablebadge('async', 'async')
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badge['badge-type'] = _('coroutine')
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elif isinstance(value, classmethod):
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key = _('Methods')
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label = f'{name}.{attr}'
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badge = attributetablebadge('cls', 'cls')
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badge['badge-type'] = _('classmethod')
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elif inspect.isfunction(value):
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if doc.startswith(('A decorator', 'A shortcut decorator')):
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# finicky but surprisingly consistent
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badge = attributetablebadge('@', '@')
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badge['badge-type'] = _('decorator')
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key = _('Methods')
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else:
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key = _('Methods')
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badge = attributetablebadge('def', 'def')
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badge['badge-type'] = _('method')
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groups[key].append(TableElement(fullname=attrlookup, label=label, badge=badge))
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return groups
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def class_results_to_node(key, elements):
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title = attributetabletitle(key, key)
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ul = nodes.bullet_list('')
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for element in elements:
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ref = nodes.reference('', '', internal=True,
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refuri='#' + element.fullname,
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anchorname='',
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*[nodes.Text(element.label)])
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para = addnodes.compact_paragraph('', '', ref)
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if element.badge is not None:
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ul.append(attributetable_item('', element.badge, para))
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else:
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ul.append(attributetable_item('', para))
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return attributetablecolumn('', title, ul)
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def setup(app):
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app.add_directive('attributetable', PyAttributeTable)
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app.add_node(attributetable, html=(visit_attributetable_node, depart_attributetable_node))
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app.add_node(attributetablecolumn, html=(visit_attributetablecolumn_node, depart_attributetablecolumn_node))
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app.add_node(attributetabletitle, html=(visit_attributetabletitle_node, depart_attributetabletitle_node))
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app.add_node(attributetablebadge, html=(visit_attributetablebadge_node, depart_attributetablebadge_node))
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app.add_node(attributetable_item, html=(visit_attributetable_item_node, depart_attributetable_item_node))
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app.add_node(attributetableplaceholder)
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app.connect('doctree-resolved', process_attributetable) |