Try to fix CI?

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>

.github/workflows/ci.yml

@@ -539,7 +539,7 @@ jobs:
           - {bt: Release, os: ubuntu-18.04}
           - {bt: Release, os: windows-2019}
     env: {STD: "${{matrix.std}}", CXX_: "${{matrix.cxx}}", BT: "${{matrix.bt}}", BITLINKS: "${{matrix.bitlinks}}", VG: "${{matrix.vg}}", SAN: "${{matrix.san}}", LINT: "${{matrix.lint}}", OS: "${{matrix.os}}",
-          API: ON, CMAKE_FLAGS: "-DRYML_DEV=OFF -DRYML_BUILD_API=ON -DRYML_API_TESTS=ON -DRYML_API_BENCHMARKS=ON"}
+          API: ON, CMAKE_FLAGS: "-DRYML_DEV=OFF -DRYML_BUILD_API=ON -DRYML_API_TESTS=ON -DRYML_API_BENCHMARKS=OFF"}
     steps:
       - {name: checkout, uses: actions/checkout@v2, with: {submodules: recursive}}
       - {name: install requirements, run: source .github/reqs.sh && c4_install_test_requirements $OS}
@@ -560,11 +560,6 @@ jobs:
             source .github/setenv.sh
             source env/bin/activate
             c4_build_target shared64 ryml-api-test-python3
-      - name: api-shared64-python-benchmark
-        run: |
-            source .github/setenv.sh
-            source env/bin/activate
-            c4_build_target shared64 ryml-api-bm-python3
 
   #----------------------------------------------------------------------------
   # useful to iterate when fixing the release

api/python/parse.py

@@ -27,7 +27,7 @@ class TestSubstrInterop(unittest.TestCase):
     def test12_str2substr(self):
         s = ""
         with self.assertRaises(TypeError) as context:
-            c = ryml.as_substr(s)
+            _ = ryml.as_substr(s)
         self.assertTrue(type(context.exception), TypeError)
 
     # ------------------------------------------------
@@ -50,7 +50,7 @@ class TestSubstrInterop(unittest.TestCase):
     def test22_bytes2substr(self):
         s = b"foo22"
         with self.assertRaises(TypeError) as context:
-            c = ryml.as_substr(s)
+            _ = ryml.as_substr(s)
         self.assertTrue(type(context.exception), TypeError)
 
     # ------------------------------------------------

api/python/requirements_dev.txt

@@ -1,4 +1,5 @@
 ruamel.yaml
+ninja
 pyyaml
 prettytable
 git+git://github.com/litghost/cmake-build-extension.git@add_support_for_components#egg=cmake-build-extension