diff --git a/unitree_sdk2py/b2/__init__.py b/unitree_sdk2py/b2/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/unitree_sdk2py/b2/back_video/__init__.py b/unitree_sdk2py/b2/back_video/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/unitree_sdk2py/b2/front_video/__init__.py b/unitree_sdk2py/b2/front_video/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/unitree_sdk2py/b2/robot_state/__init__.py b/unitree_sdk2py/b2/robot_state/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/unitree_sdk2py/b2/sport/__init__.py b/unitree_sdk2py/b2/sport/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/unitree_sdk2py/b2/vui/__init__.py b/unitree_sdk2py/b2/vui/__init__.py
new file mode 100644
index 00000000..e69de29b