downgrade sphinx version

docs/conf.py

@@ -30,7 +30,6 @@
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #
-needs_sphinx = "4.3"  # Nicer param docs
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
@@ -217,9 +216,9 @@
 }
 
 
-def setup(app):
-    # https://github.com/pradyunsg/furo/issues/49
-    app.config.pygments_style = "default"
-    app.config.pygments_dark_style = "native"
-    app.add_stylesheet("css/override.css")
-    app.add_stylesheet("css/sphinx_gallery.css")
+# def setup(app):
+#     # https://github.com/pradyunsg/furo/issues/49
+#     app.config.pygments_style = "default"
+#     app.config.pygments_dark_style = "native"
+#     app.add_stylesheet("css/override.css")
+#     app.add_stylesheet("css/sphinx_gallery.css")

pyproject.toml

@@ -64,7 +64,7 @@ scanpydoc = {version = ">=0.5", optional = true}
 scikit-learn = ">=0.21.2"
 scikit-misc = {version = ">=0.1.3", optional = true}
 setuptools = "<=59.5.0"
-sphinx = {version = ">=4.1", optional = true}
+sphinx = {version = ">=3.0,<4.0", optional = true}
 sphinx-autodoc-typehints = {version = "*", optional = true}
 sphinx-gallery = {version = ">0.6", optional = true}
 sphinx-panels = {version = "*", optional = true}