Switch algorithms and scheduling python libraries from swig to pybind11; switch protobuf support from forced serialization to pybind11_protobuf -- with patch; [CP-SAT] rewrite cut management; reformat samples with black

ortools/python/ortools_notebook.py

@@ -10,6 +10,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+
 """Launch the notebook server."""
 
 import re
@@ -17,6 +18,7 @@ import sys
 
 from notebook import notebookapp
 
-if __name__ == '__main__':
-    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+
+if __name__ == "__main__":
+    sys.argv[0] = re.sub(r"(-script\.pyw?|\.exe)?$", "", sys.argv[0])
     sys.exit(notebookapp.main())