Python 3.10.0-rc.1

Author: cclauss

.github/workflows/directory_writer.yml

@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v1  # v1, NOT v2
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.10.0-beta.4"
+          python-version: "3.10.0-rc.1"
       - name: Write DIRECTORY.md
         run: |
           scripts/build_directory_md.py 2>&1 | tee DIRECTORY.md