Physical group not being generated in gmsh python
Hi, I am trying to run gmsh in google colab to generate a 2D mesh with holes. While the mesh is being generated, there seems to be an issue with generating the physical groups. When I tried reading the gmsh file withe Firedrake (FEM solver), it reported an error due to not having physical groups. I also opened the mesh in Gmsh GUI software, but I couldn't see any physical group being created. I am attaching a link to my colab notebook. Any help with this problem is greatly appreciated.
Colab notebook https://colab.research.google.com/drive/1SOaM9EuobCSF15r2t3nEyYb6tPQgYW_u?usp=sharing
Thanks Arijit