Fixes ReadTheDocs build

Adds a shared requirements.txt file for the dev dependencies

.devcontainer/Dockerfile

@@ -15,11 +15,7 @@ RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
 ENV VIRTUAL_ENV=/opt/venv
 RUN python -m venv $VIRTUAL_ENV
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
-RUN pip install --no-cache-dir \
+RUN pip install --no-cache-dir -r python/requirements.dev.txt
-    maturin \
-    sphinx \
-    sphinx-autobuild \
-    furo
 
 # Change owner to the devcontainer user
 RUN chown -R 1000:1000 $VIRTUAL_ENV

.github/workflows/artifacts.yml

@@ -16,8 +16,10 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.8
-      - run: python -m venv python/venv
+      - run: python -m venv venv
-      - run: source python/venv/bin/activate && pip install --upgrade maturin sphinx furo
+        working-directory: ./python
+      - run: source venv/bin/activate && pip install --upgrade -r requirements.dev.txt
+        working-directory: ./python
       - run: source venv/bin/activate && maturin develop
         working-directory: ./python
       - run: source ../venv/bin/activate && sphinx-build -M doctest . build

.github/workflows/release.yml

@@ -183,8 +183,10 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.8
-      - run: python -m venv python/venv
+      - run: python -m venv venv
-      - run: source python/venv/bin/activate && pip install --upgrade maturin sphinx furo
+        working-directory: ./python
+      - run: source venv/bin/activate && pip install --upgrade -r requirements.dev.txt
+        working-directory: ./python
       - run: source venv/bin/activate && maturin develop
         working-directory: ./python
       - run: source ../venv/bin/activate && sphinx-build -M doctest . build

.github/workflows/tests.yml

@@ -89,7 +89,7 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: "3.10"
-      - run: pip install --upgrade maturin sphinx furo
+      - run: pip install --upgrade -r python/requirements.dev.txt
       - run: maturin sdist -m python/Cargo.toml
       - run: pip install target/wheels/*.tar.gz
       - run: python -m unittest

.readthedocs.yaml

@@ -13,6 +13,7 @@ build:
 
 python:
   install:
+    - requirements: python/requirements.dev.txt
     - method: pip
       path: python
 

python/requirements.dev.txt

@@ -0,0 +1,4 @@
+furo
+maturin
+sphinx
+sphinx-autobuild