[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

nbconvert/exporters/html.py

@@ -266,7 +266,9 @@ def from_notebook_node(  # type:ignore[explicit-override, override]
                 markdown_collection = markdown_collection + cell.source + "\n"
 
         resources = self._init_resources(resources)
-        resources.update({"tableofcontents": extract_titles_from_markdown_input(markdown_collection)})
+        resources.update(
+            {"tableofcontents": extract_titles_from_markdown_input(markdown_collection)}
+        )
 
         filter_data_type = WidgetsDataTypeFilter(
             notebook_metadata=self._nb_metadata, parent=self, resources=resources

nbconvert/exporters/slides.py

@@ -41,7 +41,7 @@ def preprocess(self, nb, resources=None):
 
         in_fragment = False
 
-        for index, cell in enumerate(nb.cells[first_slide_ix + 1:], start=(first_slide_ix + 1)):
+        for index, cell in enumerate(nb.cells[first_slide_ix + 1 :], start=(first_slide_ix + 1)):
             previous_cell = nb.cells[index - 1]
 
             # Slides are <section> elements in the HTML, subslides (the vertically

nbconvert/exporters/templateexporter.py

@@ -203,9 +203,9 @@ def default_config(self):
     enable_async = Bool(False, help="Enable Jinja async template execution").tag(
         affects_environment=True
     )
-    include_tableofcontents = Bool(False, allow_none=True, help="Enable to include a table of contents").tag(
-        config=True, affects_template=True
-    )
+    include_tableofcontents = Bool(
+        False, allow_none=True, help="Enable to include a table of contents"
+    ).tag(config=True, affects_template=True)
 
     _last_template_file = ""
     _raw_template_key = "<memory>"
@@ -288,7 +288,8 @@ def _template_extension_default(self):
     ).tag(config=True)
 
     exclude_output = Bool(
-        False, help="This allows you to exclude code cell outputs from all templates if set to True.",
+        False,
+        help="This allows you to exclude code cell outputs from all templates if set to True.",
     ).tag(config=True)
 
     exclude_output_prompt = Bool(

nbconvert/filters/ansi.py

@@ -197,7 +197,7 @@ def _ansi2anything(text, converter):
                     pass  # Invalid color specification
             else:
                 pass  # Not a color code
-            chunk, text = text[: m.start()], text[m.end():]
+            chunk, text = text[: m.start()], text[m.end() :]
         else:
             chunk, text = text, ""
 

nbconvert/filters/citation.py

@@ -42,7 +42,7 @@ def citation2latex(s):
     outtext = ""
     startpos = 0
     for citation in parser.citelist:
-        outtext += s[startpos: citation[1]]
+        outtext += s[startpos : citation[1]]
         outtext += "\\cite{%s}" % citation[0]
         startpos = citation[2] if len(citation) == 3 else -1
     outtext += s[startpos:] if startpos != -1 else ""

nbconvert/filters/markdown_mistune.py

@@ -385,7 +385,7 @@ def _embed_image_or_attachment(self, src: str) -> str:
 
         attachment_prefix = "attachment:"
         if src.startswith(attachment_prefix):
-            name = src[len(attachment_prefix):]
+            name = src[len(attachment_prefix) :]
 
             if name not in self.attachments:
                 msg = f"missing attachment: {name}"
@@ -522,7 +522,7 @@ def extract_titles_from_markdown_input(markdown_input):
         attrs = title["attrs"]
         raw_text = children[0]["raw"]
         header_level = attrs["level"]
-        id = raw_text.replace(' ', '-')
+        id = raw_text.replace(" ", "-")
         href = "#" + id
         titles_array.append([header_level, raw_text, id, href])
     return titles_array

nbconvert/nbconvertapp.py

@@ -187,12 +187,8 @@ def validate(self, obj, value):
             """Whether the HTML in Markdown cells and cell outputs should be sanitized..""",
         ),
         "toc": (
-            {
-                "TemplateExporter": {
-                    "include_tableofcontents": True
-                }
-            },
-            "Generate a table of contents in the output (only compatible with HTML and Latex exporters)"
+            {"TemplateExporter": {"include_tableofcontents": True}},
+            "Generate a table of contents in the output (only compatible with HTML and Latex exporters)",
         ),
     }
 )
@@ -678,6 +674,7 @@ def initialize(self, argv=None):
     def _default_export_format(self):
         return "html"
 
+
 # -----------------------------------------------------------------------------
 # Main entry point
 # -----------------------------------------------------------------------------

share/templates/lab/index.html.j2

@@ -187,7 +187,7 @@ a.anchor-link {
 {{text}}
 </a>
 </div>
-{%- endif -%} 
+{%- endif -%}
 {%- if level==2 -%}
 <div class="jp-RenderedHTMLCommon jp-RenderedHTMLTOC-Item-h2">
 <a href={{href}}>

share/templates/latex/base.tex.j2

@@ -213,7 +213,7 @@ override this.-=))
 ((* endblock header *))
 
 ((* block body *))
- 
+
 \begin{document}
     ((* block predoc *))
     ((* block maketitle *))\maketitle((* endblock maketitle *))

tests/base.py

@@ -176,15 +176,15 @@ def assert_big_text_equal(a, b, chunk_size=80):
     to give better info than vanilla assertEqual for large text blobs.
     """
     for i in range(0, len(a), chunk_size):
-        chunk_a = a[i: i + chunk_size]
-        chunk_b = b[i: i + chunk_size]
+        chunk_a = a[i : i + chunk_size]
+        chunk_b = b[i : i + chunk_size]
         assert chunk_a == chunk_b, "[offset: %i]\n%r != \n%r" % (i, chunk_a, chunk_b)
 
     if len(a) > len(b):
         raise AssertionError(
-            "Length doesn't match (%i > %i). Extra text:\n%r" % (len(a), len(b), a[len(b):])
+            "Length doesn't match (%i > %i). Extra text:\n%r" % (len(a), len(b), a[len(b) :])
         )
     if len(a) < len(b):
         raise AssertionError(
-            "Length doesn't match (%i < %i). Extra text:\n%r" % (len(a), len(b), a[len(b):])
+            "Length doesn't match (%i < %i). Extra text:\n%r" % (len(a), len(b), a[len(b) :])
         )