fix for readthedocs

.readthedocs.yml

@@ -1,11 +1,17 @@
-version: 2
-
 build:
-  os: ubuntu-20.04
+  os: "ubuntu-22.04"
   tools:
     python: "3.9"
+  jobs:
+    post_create_environment:
+      # Install poetry
+      # https://python-poetry.org/docs/#installing-manually
+      - pip install poetry
+      # Tell poetry to not use a virtual environment
+      - poetry config virtualenvs.create false
+      # Install dependencies with 'docs' dependency group
+      # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
+      - poetry install --with docs
 
-python:
-  install:
-    - method: pip
-      path: .
+sphinx:
+  configuration: docs/conf.py

pyproject.toml

@@ -39,7 +39,7 @@ coverage = "^6.5.0"
 
 [tool.poetry.group.docs.dependencies]
 matplotlib = "^3.6.0"
-Sphinx = "^5.2.3"
+sphinx = "^5.2.3"
 sphinx-automodapi = "^0.14.1"
 graphviz = "^0.20.1"