Change dependencies in the Conda environment.
We can remove the dependency on sphinxcontrib, since sphinx.ext.napoleon is
already available. This means we can drop conda-forge, which substantially
reduces build memory usage (see: readthedocs/readthedocs.org#6742,
conda/conda#5003, conda/conda#8650, readthedocs/readthedocs.org#6692).
Bump Sphinx to 2.4.0, while we're at it.
diff --git a/python/docs/conf.py b/python/docs/conf.py
index 6aef7e4..913f012 100644
--- a/python/docs/conf.py
+++ b/python/docs/conf.py
@@ -71,7 +71,7 @@
"sphinx.ext.autosummary",
"sphinx.ext.ifconfig",
"sphinx.ext.intersphinx",
- "sphinxcontrib.napoleon",
+ "sphinx.ext.napoleon",
]
# Add any paths that contain templates here, relative to this directory.
