Fix a number of nox -s translate issues.

Really all the `nox -s translate -- <target>` should be tested. At least
with mypy, it woudl catch most errors

.github/workflows/CI.yml

@@ -108,6 +108,24 @@ jobs:
       - name: "Run accessibility tests with playwright 🎭"
         # build PST, build docs, then run a11y-tests
         run: python -Im tox run -e py312-docs,a11y-tests
+  nox-tests:
+    name: "nox tests (ubuntu-latest, 3.12)"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout repository 🛎"
+        uses: actions/checkout@v4
+      - name: "Setup CI environment 🛠"
+        uses: ./.github/actions/set-dev-env
+        with:
+          python-version: ${{ env.DEFAULT_PYTHON_VERSION }}
+      - name: "Run various nox commands"
+        # build PST, build docs, then run a11y-tests
+        run: |
+          pip install nox
+          nox -s translate -- init
+          nox -s translate -- extract
+          nox -s translate -- update
+          nox -s translate -- compile
 
   # Build our docs (PST) on major OSes and check for warnings
   build-site:

noxfile.py

@@ -155,7 +155,7 @@ def translate(session: nox.Session) -> None:
             pybabel_cmd, found = (c, True)
 
     if found is False:
-        print(
+        raise ValueError(
             "No translate command found. Use like: `nox -s translate -- COMMAND`."
             "\ndefaulting to `update`"
             "\nAvailable commands: extract, update, compile, init"
@@ -166,18 +166,28 @@ def translate(session: nox.Session) -> None:
     lan = "en" if len(session.posargs) < 2 else session.posargs[-1]
 
     # get the path to the differnet local related pieces
-    locale_dir = str(ROOT / "src" / "pydata_sphinx_theme" / "locale")
+    locale_dir_p = ROOT / "src" / "pydata_sphinx_theme" / "locale"
+    locale_dir = str(locale_dir_p)
     babel_cfg = str(ROOT / "babel.cfg")
-    pot_file = str(locale_dir / "sphinx.pot")
+    pot_file = str(locale_dir_p / "sphinx.pot")
 
     # install deps
     session.install("Babel")
+    session.install("jinja2")
 
     # build the command from the parameters
     cmd = ["pybabel", pybabel_cmd]
 
     if pybabel_cmd == "extract":
-        cmd += [ROOT, "-F", babel_cfg, "-o", pot_file, "-k", "_ __ l_ lazy_gettext"]
+        cmd += [
+            str(ROOT),
+            "-F",
+            babel_cfg,
+            "-o",
+            pot_file,
+            "-k",
+            "_ __ l_ lazy_gettext",
+        ]
 
     elif pybabel_cmd == "update":
         cmd += ["-i", pot_file, "-d", locale_dir, "-D", "sphinx"]
@@ -187,8 +197,7 @@ def translate(session: nox.Session) -> None:
 
     elif pybabel_cmd == "init":
         cmd += ["-i", pot_file, "-d", locale_dir, "-D", "sphinx", "-l", lan]
-
-    session.run(cmd)
+    session.run(*cmd)
 
 
 @nox.session()