Remove useless workaround for RTD failures, and add retries for RTD f…

…ailure in docs/conf.py

.github/workflows/wheels.yml

@@ -158,12 +158,6 @@ jobs:
     needs: [wheels]
 
     steps:
-      - name: Ensure RTD wheel is available
-        uses: actions/download-artifact@v3
-        with:
-          name: rtd-wheel
-          path: wheelhouse
-
       - name: Trigger ReadTheDocs webhook
         run: |
           curl -X POST -d "branches=${{ github.ref_name }}" -d "token=${{ secrets.READTHEDOCS_WEBHOOK_TOKEN }}" https://readthedocs.org/api/v2/webhook/parselmouth/15985/

docs/conf.py

@@ -30,6 +30,7 @@
 import subprocess
 import sys
 import tempfile
+import time
 import zipfile
 
 on_rtd = os.environ.get('READTHEDOCS') == 'True'
@@ -82,7 +83,15 @@
     runs = g.get_repo('YannickJadoul/Parselmouth').get_workflow("wheels.yml").get_runs(branch=branch)
     artifacts_url = next(r for r in runs if r.head_sha == head_sha).artifacts_url
 
-    archive_download_url = next(artifact for artifact in requests.get(artifacts_url).json()['artifacts'] if artifact['name'] == 'rtd-wheel')['archive_download_url']
+    archive_download_url = None
+    for i in range(5):
+        try:
+            archive_download_url = next(artifact for artifact in requests.get(artifacts_url).json()['artifacts'] if artifact['name'] == 'rtd-wheel')['archive_download_url']
+            break
+        except StopIteration:
+            if i == 4:
+                raise
+            time.sleep(15)
     artifact_bin = io.BytesIO(requests.get(archive_download_url, headers={'Authorization': f'token {github_token}'}, stream=True).content)
 
     with zipfile.ZipFile(artifact_bin) as zf, tempfile.TemporaryDirectory() as tmpdir: